Microsoft Defender for Linux Code Execution Vulnerability

Microsoft Defender for Linux is Microsoft's own antivirus security software. A security vulnerability exists in Microsoft Defender for Linux that originates from improper input validation and can be exploited by remote attackers to execute arbitrary code...

Orbital Escalation: Modeling Satellite Ransomware Attacks Using Game Theory

Ransomware has yet to reach orbit, but the conditions for such an attack already exist. This paper presents the first game-theoretic framework for modeling ransomware against satellites: the orbital escalation game. In this model, the attacker escalates ransom demands across orbital passes, while...

Using AI to defeat AI

Welcome to this week's edition of the Threat Source newsletter. Generative AI and agentic AI are here to stay. Although I believe that the advantages that AI brings to bad guys may be overstated, these new technologies allow threat actors to conduct attacks at a faster rate than before. One...

K000160003: BIG-IP TMM vulnerability CVE-2026-2507

Security Advisory Description When BIG-IP AFM or BIG-IP DDoS Hybrid Defender is provisioned, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. CVE-2026-2507 Impact Traffic is disrupted while the TMM process restarts. This vulnerability allows a remote,...

F5 Networks BIG-IP : BIG-IP TMM vulnerability (K000160003)

The version of F5 Networks BIG-IP installed on the remote host is prior to 17.5.1.5 / Hotfix- BIGIP-17.5.1.4.0.17.20-ENG.iso. It is, therefore, affected by a vulnerability as referenced in the K000160003 advisory. When BIG-IP AFM or BIG-IP DDoS Hybrid Defender is provisioned, undisclosed traffic...

Malicious code in easyreg (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 2897582bf6c0c29d4fc679ee338263019a8a5d5bcb66b5ae2c59454d6c967d6a The package pretends to be a development helper but, in fact, downloads a remote executable. Dynamic analysis reveals actions like disabling Windows Defender a...

MAL-2026-932 Malicious code in easyreg (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 2897582bf6c0c29d4fc679ee338263019a8a5d5bcb66b5ae2c59454d6c967d6a The package pretends to be a development helper but, in fact, downloads a remote executable. Dynamic analysis reveals actions like disabling Windows Defender a...

Malicious code in pywin-simple-gui (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 43b40c0dbbbc187822a28a401194873adc73d13e531f2789c4227374f7ec9e26 The package pretends to be a development helper but, in fact, downloads a remote executable. Dynamic analysis reveals actions like disabling Windows Defender a...

MAL-2026-933 Malicious code in pywin-simple-gui (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 43b40c0dbbbc187822a28a401194873adc73d13e531f2789c4227374f7ec9e26 The package pretends to be a development helper but, in fact, downloads a remote executable. Dynamic analysis reveals actions like disabling Windows Defender a...

Security Bulletin: File permission modification, improper access control, and other vulnerabilities might affect IBM Storage Defender - Resiliency Service

Summary IBM Storage Defender - Resiliency Service is vulnerable to file permission modification, improper access control, and others. The vulnerabilities have been addressed. Vulnerability Details CVEID:CVE-2026-24049 DESCRIPTION: wheel is a command line tool for manipulating Python wheel files, ...

Detecting and mitigating common agent misconfigurations

Organizations are rapidly adopting agents, but attackers are equally fast at exploiting misconfigured AI workflows. Mis-sharing, unsafe orchestration, and weak authentication create new identity and data‑access paths that traditional controls don’t monitor. As agents become integrated into...

Top 10 actions to build agents securely with Microsoft Copilot Studio

Organizations are rapidly adopting Copilot Studio agents, but threat actors are equally fast at exploiting misconfigured AI workflows. Mis-sharing, unsafe orchestration, and weak authentication create new identity and data‑access paths that traditional controls don’t monitor. As AI agents become...

CVE-2026-21537

Improper control of generation of code 'code injection' in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network...

CVE-2026-21537

Improper control of generation of code 'code injection' in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network...

CVE-2026-21537

Improper control of generation of code 'code injection' in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network...

CVE-2026-21537

Technical details such as affected product versions, root cause, exploit methods, and patches are not provided in the supplied documents. Monitor for updates and new disclosures.

CVE-2026-21537

Improper control of generation of code 'code injection' in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network...

CVE-2026-21537 Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability

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CVE-2026-21537 Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability

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Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability

Improper control of generation of code 'code injection' in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network...