RockyLinux 9 : xorg-x11-server (RLSA-2026:38486)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:38486 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the RockyLin...

PT-2026-58534

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow exists in Microsoft Office Excel, which could allow an unauthorized attacker to execute arbitrary code locally. A heap-based buffer overflow occurs...

PT-2026-58335

Name of the Vulnerable Software and Affected Versions Windows Data dll affected versions not specified Description A heap-based buffer overflow occurs in the Windows Data dll, which could allow an unauthorized attacker to execute arbitrary code locally or remotely, potentially affecting the entir...

PT-2026-58572

Name of the Vulnerable Software and Affected Versions Microsoft Office affected versions not specified Description A heap-based buffer overflow exists in Microsoft Office, which allows an unauthorized attacker to execute code locally. This can occur through the processing of malicious files and...

PT-2026-58475

Name of the Vulnerable Software and Affected Versions Windows 11 affected versions not specified Windows Server 2025 affected versions not specified Description A stack-based buffer overflow exists in the Windows Resilient File System ReFS, which is a file system designed to maintain data...

PT-2026-58452

Name of the Vulnerable Software and Affected Versions Windows Kernel affected versions not specified Description A heap-based buffer overflow exists in the Windows Kernel. This issue allows an authorized attacker to elevate privileges locally, potentially gaining kernel-level access to the system...

PT-2026-58863

Name of the Vulnerable Software and Affected Versions OpenHTJ2K versions prior to 0.18.4 Description A buffer overflow allows an attacker to execute arbitrary code. The issue exists within the openhtj2k decoder impl::invoke, invoke line based, invoke line based stream, and invoke line based...

PT-2026-58576

Name of the Vulnerable Software and Affected Versions Microsoft Office OneNote affected versions not specified Description A heap-based buffer overflow occurs in Microsoft Office OneNote, which could allow an unauthorized attacker to execute code locally. A heap-based buffer overflow is a memory...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader in OpenHTJ2K versions 0.18.3 and earlier fixed in v0.18.4 caused by missing bounds validation before coding-pass lengths are written to j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

libsolv security update

0.7.24-6 - Fix a buffer overflow when decompressing solv pages CVE-2026-48864 RHEL-178982...

PT-2026-58716

Name of the Vulnerable Software and Affected Versions .NET Framework affected versions not specified Description A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than the buffer is allocated to hold. This issue allows an unauthorized attacker t...

PT-2026-58589

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader in OpenHTJ2K versions 0.18.3 and earlier fixed in v0.18.4 caused by missing bounds validation before coding-pass lengths are written to j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

PT-2026-58165

Name of the Vulnerable Software and Affected Versions Windows Resilient File System ReFS affected versions not specified Description A heap-based buffer overflow exists in the Windows Resilient File System ReFS. A heap-based buffer overflow occurs when a program writes more data to a heap memory...

PT-2026-58862

Name of the Vulnerable Software and Affected Versions OpenHTJ2K versions prior to 0.18.5 Description A buffer overflow exists that allows an attacker to execute arbitrary code. The issue occurs within the j2k precinct subband::parse packet header function located in source/core/coding/coding...

PT-2026-58390

Name of the Vulnerable Software and Affected Versions Active Directory Federation Services affected versions not specified Description A stack-based buffer overflow exists in Active Directory Federation Services AD FS, which allows an unauthenticated attacker to remotely trigger a denial of servi...

CVE-2026-51808

OpenHTJ2K is affected by CVE-2026-51808, a buffer overflow in versions prior to 0.18.4 that can lead to arbitrary code execution. The issue arises in openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded within source/core/interface/decoder....

PT-2026-58559

Name of the Vulnerable Software and Affected Versions Microsoft Office Word affected versions not specified Microsoft SharePoint affected versions not specified Description A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than the buffer is...

PT-2026-58303

Name of the Vulnerable Software and Affected Versions Active Directory Federation Services affected versions not specified Description A stack-based buffer overflow exists in Active Directory Federation Services. This flaw allows an unauthorized attacker to cause a denial of service over a networ...

Security Updates for Microsoft Word Products (July 2026)

The Microsoft Word Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. CVE-2026-55032, CVE-2026-55128 - Stack-based buffer overflow in Microsoft Office...