Threat Intelligence
CISA Known Exploited Vulnerabilities + real-time security news. Updated every 30 minutes.
Last refreshed: May 25, 2026, 5:23 p.m. PT
Drupal Core SQL Injection Vulnerability
Drupal — Core
Drupal Core contains a SQL injection vulnerability that could allow for privilege escalation and remote code execution via specially crafted requests sent with the database abstraction API.
Langflow Origin Validation Error Vulnerability
Langflow — Langflow
Langflow contains an origin validation error vulnerability in which an overly permissive CORS configuration combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. This could allow the attacker to execute arbitrary code and achieve full system compromise via obtained tokens that permit access to authenticated endpoints.
Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability
Trend Micro — Apex One
Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations.
Microsoft Windows Buffer Overflow Vulnerability
Microsoft — Windows
Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.
Microsoft DirectX NULL Byte Overwrite Vulnerability
Microsoft — DirectX
Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file.
Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability
Adobe — Acrobat and Reader
Adobe Acrobat and Reader contain a heap-based buffer overflow vulnerability which could allow remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption.
Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft — Internet Explorer
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft — Internet Explorer
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Defender Link Following Vulnerability
Microsoft — Defender
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
Microsoft Defender Denial of Service Vulnerability
Microsoft — Defender
Microsoft Defender contains an unspecified vulnerability that allows for denial of service.
Microsoft Exchange Server Cross-Site Scripting Vulnerability
Microsoft — Microsoft
Microsoft Exchange Server contains a cross-site scripting vulnerability during web page generation in Outlook Web Access and when certain interaction conditions are met, arbitrary JavaScript can be executed in the browser context.
Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
Cisco — Catalyst SD-WAN
Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.
BerriAI LiteLLM SQL Injection Vulnerability
BerriAI — LiteLLM
BerriAI LiteLLM contains a SQL injection vulnerability that allows an attacker to read data from the proxy's database and potentially modify it, leading to unauthorized access to the proxy and the credentials it manages.
Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
Ivanti — Endpoint Manager Mobile (EPMM)
Ivanti Endpoint Manager Mobile (EPMM) contains an improper input validation vulnerability that allows a remotely authenticated user with administrative access to achieve remote code execution.
Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability
Palo Alto Networks — PAN-OS
Palo Alto Networks PAN-OS contains an out-of-bounds write vulnerability in the User-ID Authentication Portal (aka Captive Portal) service that can allow an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.
Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
Linux — Kernel
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability
WebPros — cPanel & WHM and WP2 (WordPress Squared)
WebPros cPanel & WHM (WebHost Manager) and WP2 (WordPress Squared) contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.
ConnectWise ScreenConnect Path Traversal Vulnerability
ConnectWise — ScreenConnect
ConnectWise ScreenConnect contains a path traversal vulnerability which could allow an attacker to execute remote code or directly impact confidential data and critical systems.
Microsoft Windows Protection Mechanism Failure Vulnerability
Microsoft — Windows
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
D-Link DIR-823X Command Injection Vulnerability
D-Link — DIR-823X
D-Link DIR-823X contains a command injection vulnerability that allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Samsung MagicINFO 9 Server Path Traversal Vulnerability
Samsung — MagicINFO 9 Server
Samsung MagicINFO 9 Server contains a path traversal vulnerability that could allow an attacker to write arbitrary files as system authority.
SimpleHelp Path Traversal Vulnerability
SimpleHelp — SimpleHelp
SimpleHelp contains a path traversal vulnerability that allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.
SimpleHelp Missing Authorization Vulnerability
SimpleHelp — SimpleHelp
SimpleHelp contains a missing authorization vulnerability that could allow low-privileged technicians to create API keys with excessive permissions. These API keys can be used to escalate privileges to the server admin role.
Marimo Remote Code Execution Vulnerability
Marimo — Marimo
Marimo contains an pre-authorization remote code execution vulnerability, allowing an unauthenticated attacked to shell access and execute arbitrary system commands.
Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Microsoft — Defender
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
Cisco — Catalyst SD-WAN Manger
Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Cisco — Catalyst SD-WAN Manager
Cisco Catalyst SD-WAN Manager contains an exposure of sensitive information to an unauthorized actor vulnerability that could allow remote attackers to view sensitive information on affected systems.
Kentico Xperience Path Traversal Vulnerability
Kentico — Kentico Xperience
Kentico Xperience contains a path traversal vulnerability that could allow an authenticated user's Staging Sync Server to upload arbitrary data to path relative locations.
PaperCut NG/MF Improper Authentication Vulnerability
PaperCut — NG/MF
PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
Synacor — Zimbra Collaboration Suite (ZCS)
Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.
Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
Cisco — Catalyst SD-WAN Manager
Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.
Quest KACE Systems Management Appliance (SMA) Improper Authentication Vulnerability
Quest — KACE Systems Management Appliance (SMA)
Quest KACE Systems Management Appliance (SMA) contains an improper authentication vulnerability that could allow attackers to impersonate legitimate users without valid credentials.
JetBrains TeamCity Relative Path Traversal Vulnerability
JetBrains — TeamCity
JetBrains TeamCity contains a relative path traversal vulnerability that could allow limited admin actions to be performed.
Apache ActiveMQ Improper Input Validation Vulnerability
Apache — ActiveMQ
Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.
Microsoft Office Remote Code Execution
Microsoft — Office
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
Microsoft SharePoint Server Improper Input Validation Vulnerability
Microsoft — SharePoint Server
Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability
Microsoft — Visual Basic for Applications (VBA)
Microsoft Visual Basic for Applications (VBA) contains an insecure library loading vulnerability that could allow for remote code execution.
Microsoft Windows Link Following Vulnerability
Microsoft — Windows
Microsoft Windows contains a link following vulnerability that allows for privilege escalation
Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability
Microsoft — Exchange Server
Microsoft Exchange Server contains a deserialization of untrusted data that allows an authenticated attacker to achieve remote code execution.
Microsoft Windows Out-of-Bounds Read Vulnerability
Microsoft — Windows
Microsoft Windows Common Log File System Driver contains an out-of-bounds read vulnerability that could allow a threat actor for privileges escalation
Adobe Acrobat Use-After-Free Vulnerability
Adobe — Acrobat
Adobe Acrobat contains a use-after-free vulnerability that allows for code execution
Fortinet FortiClient EMS SQL Injection Vulnerability
Fortinet — FortiClient EMS
Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Adobe Acrobat and Reader Prototype Pollution Vulnerability
Adobe — Acrobat and Reader
Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.
Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
Ivanti — Endpoint Manager Mobile (EPMM)
Ivanti Endpoint Manager Mobile (EPMM) contains a code injection vulnerability that could allow attackers to achieve unauthenticated remote code execution.
Fortinet FortiClient EMS Improper Access Control Vulnerability
Fortinet — FortiClient EMS
Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.
TrueConf Client Download of Code Without Integrity Check Vulnerability
TrueConf — Client
TrueConf Client contains a download of code without integrity check vulnerability. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code execution in the context of the updating process or user.
Google Dawn Use-After-Free Vulnerability
Google — Dawn
Google Dawn contains an use-after-free vulnerability that could allow a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. This vulnerability could affect multiple Chromium-based products including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Citrix NetScaler Out-of-Bounds Read Vulnerability
Citrix — NetScaler
Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds reads vulnerability when configured as a SAML IDP leading to memory overread.
F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
F5 — BIG-IP
F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.
Aquasecurity Trivy Embedded Malicious Code Vulnerability
Aquasecurity — Trivy
Aquasecurity Trivy contains an embedded malicious code vulnerability that could allow an attacker to gain access to everything in the CI/CD environment, including all tokens, SSH keys, cloud credentials, database passwords, and any sensitive configuration in memory.
Possible ACR Stealer From Page Impersonating Claude, (Tue, May 26th)
Introduction
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Anthropic’s restricted Claude Mythos model may be coming to Claude Code
Anthropic appears to be preparing for the public rollout of the Mythos model, which was announced in April as a restricted model that poses major security risks to private and public software. [...]…
Microsoft Access VBA, (Mon, May 25th)
Microsoft Access files (Microsoft Office&#;x26;#;39;s Database) can contain VBA code.
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⚡ Weekly Recap: Linux Flaws, Defender 0-Days, Router Botnets, and Supply Chain Chaos
Monday recap. Same mess, new week. A sketchy dev tool got people pwned, old bugs came back from the dead, and security products somehow needed protecting from themselves. A bunch of companies spent the week checking old …
TeamPCP Supply Chain Campaign: Activity Through 2026-05-24, (Mon, May 25th)
TeamPCP now operates across three package ecosystems in parallel, it reached GitHub&#;x26;#;39;s own internal codebase, it trojanized an officially Microsoft-published Python SDK, and it appea…
TeamPCP Supply Chain Campaign: Activity Through 2026-05-24, (Mon, May 25th)
TeamPCP now operates across three package ecosystems in parallel, it reached GitHub&#;x26;#;39;s own internal codebase, it trojanized an officially Microsoft-published Python SDK, and it appea…
Netherlands Seizes 800 Servers, Arrests 2 for Aiding Cyberattacks
Authorities in the Netherlands have arrested the co-owners of two related Internet hosting companies for operating IT infrastructure used by Russia to carry out cyberattacks, influence operations and disinformation campa…
FBI warns of Kali365 phishing service targeting Microsoft 365 accounts
The FBI is warning about the Kali365 phishing-as-a-service platform (PhaaS) that is used to hijack Microsoft 365 accounts by abusing OAuth device code authentication to steal session tokens and bypass multi-factor authen…
Ghost CMS CVE-2026-26980 Exploited to Hijack 700+ Sites for ClickFix Attacks
Threat actors are exploiting a recently disclosed critical security flaw in Ghost CMS to inject malicious JavaScript code with an aim to fuel ClickFix attacks. According to QiAnXin XLab, the activity involves the exploit…
The Alert Firehose Finally Meets Its Match
Ask a cybersecurity pro about Network Detection and Response (NDR) and you might still hear "Noisy," "Too much data." But ask the teams running NDR that includes agentic AI capabilities and you'll hear they're actually u…
Lazarus Deploys RemotePE Memory-Only RAT Against Financial and Crypto Firms
Cybersecurity researchers have shed light on a cross-platform malware called RemotePE that has been put to use by the North Korea-linked Lazarus Group in attacks targeting financial and cryptocurrency organizations. Remo…
TrapDoor Supply Chain Attack Spreads Credential-Stealing Malware via npm, PyPI, and CratesIO
A new coordinated cross-ecosystem software supply chain attack campaign has targeted npm, PyPI, and Crates.io to distribute credential-stealing malware. The campaign, codenamed TrapDoor, spans more than 34 malicious pack…
Wireshark 4.6.6 Released, (Sun, May 24th)
Wireshark release 4.6.6 fixes 1 vulnerability and 11 bugs.
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Ghost CMS SQL injection flaw exploited in large-scale ClickFix campaign
A large-scale campaign is exploiting a critical SQL injection vulnerability (CVE-2026-26980) in Ghost CMS to inject malicious JavaScript code that triggers ClickFix attack flows. [...]…
Laravel Lang packages hijacked to deploy credential-stealing malware
A supply chain attack targeting the Laravel Lang localization packages has exposed developers to a sophisticated credential-stealing malware campaign after attackers abused GitHub version tags to distribute malicious cod…
npm Adds 2FA-Gated Publishing and Package Install Controls Against Supply Chain Attacks
GitHub has rolled out new controls for npm to improve the security of the software supply chain, giving maintainers the ability to explicitly approve a release prior to the packages becoming publicly available for instal…
Packagist Supply Chain Attack Infects 8 Packages Using GitHub-Hosted Linux Malware
A new "coordinated" supply chain attack campaign has impacted eight packages on Packagist including malicious code designed to run a Linux binary retrieved from a GitHub Releases URL. "Although the affected packages were…
Italy disrupts CINEMAGOAL piracy app that stole streaming auth codes
Italian authorities have dismantled a piracy ecosystem centered around the CINEMAGOAL app that provided access to various streaming platforms, including Netflix, Disney+, and Spotify. [...]…
Claude Mythos AI Finds 10,000 High-Severity Flaws in Widely Used Software
Anthropic on Friday disclosed that Project Glasswing has helped uncover more than 10,000 high- or critical-severity vulnerabilities across some of the most "systemically" important software across the world since the cyb…
An Example of Stack String in High Level Language, (Sat, May 23rd)
This week, I'm attending the SEC670[1] training (“Red Teaming Tools - Developing Windows Implants, Shellcode, Command and Control”). From my point of view, this training fi…
Netherlands seizes 800 servers of hosting firm enabling cyberattacks
Financial crime investigators in the Netherlands (FIOD) arrested two men and seized 800 servers linked to a web hosting company that enabled cyberattacks, interference operations, and disinformation campaigns. [...]…
Lawmakers Demand Answers as CISA Tries to Contain Data Leak
Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published …
Former US execs plead guilty to aiding tech support scammers
Two former executives of a call-tracking and analytics company pleaded guilty to concealing a years-long tech support fraud scheme that victimized individuals worldwide. [...]…
Trend Micro warns of Apex One zero-day exploited in the wild
Japanese cybersecurity software company Trend Micro has addressed an Apex One zero-day vulnerability exploited in attacks targeting Windows systems. [...]…
Alleged Kimwolf Botmaster ‘Dort’ Arrested, Charged in U.S. and Canada
Canadian authorities on Wednesday arrested a 23-year-old Ottawa man on suspicion of building and operating Kimwolf, a fast spreading Internet-of-Things botnet that enslaved millions of devices for use in a series of mass…
CISA Admin Leaked AWS GovCloud Keys on Github
Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts a…
Patch Tuesday, May 2026 Edition
Artificial intelligence platforms may be just as susceptible to social engineering as human beings, but they are proving remarkably good at finding security vulnerabilities in human-made computer code. That reality is on…
Canvas Breach Disrupts Schools & Colleges Nationwide
An ongoing data extortion attack targeting the widely-used education technology platform Canvas disrupted classes and coursework at school districts and universities across the United States today, after a cybercrime gro…