PT-2025-37235 · Linux+1 · Linux Kernel+1

Published 2025-09-11 · Updated 2025-11-25 · CVE-2025-39777

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: The Linux kernel contains an issue related to control flow integrity (CFI). A type punning issue within the acomp component could lead to a crash when CFI is enabled. The resolution involves ensuring a consistent type for the workspace function and calling it through a function pointer of the same type.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2025-39777

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39777.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2025-39777 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39777 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39777 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39777 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-39777 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39777 · Vendor Advisory
• https://git.kernel.org/stable/c/962ddc5a7a4b04c007bba0f3e7298cda13c62efd · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-39777 · Security Note
• https://git.kernel.org/stable/c/7ec68c59461ca846aab9b7c2b39f63ac7c8a43cf · Patch
• https://twitter.com/CVEnew/status/1966191560128872753 · Twitter Post
• https://t.me/cveNotify/143996 · Telegram Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/linus/962ddc5a7a4b04c007bba0f3e7298cda13c62efd · Note