PT-2025-27834 · Gstreamer+1 · Gstreamer+1

Elkamika + 1 · Published 2025-06-26 · Updated 2025-08-20 · CVE-2025-6663

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description: This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with the library is required for exploitation, with attack vectors varying based on implementation. The flaw resides within the parsing of H266 sei messages, stemming from insufficient validation of user-supplied data length before copying it to a fixed-length stack-based buffer. An attacker can leverage this to execute code within the current process context.

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

RCE

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

ALT-PU-2025-9416

BDU:2026-02184

CVE-2025-6663

ZDI-25-467

Affected Products

Alt Linux

Gstreamer

References · 15

• https://security-tracker.debian.org/tracker/CVE-2025-6663 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02184 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-6663 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-6663 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6663 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-6663 · Security Note
• https://ubuntu.com/security/CVE-2025-6663 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-25-467 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-6663 · Vendor Advisory
• https://gitlab.freedesktop.org/tpm/gstreamer/-/commit/eedd01ac3dfeb60e36a44bb61a6d0418454e8416 · Patch, Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-CAN-27381 · Note
• https://gstreamer.freedesktop.org/security/sa-2025-0007.html · Note
• https://twitter.com/CVEnew/status/1942241215048519714 · Twitter Post
• https://t.me/cveNotify/132236 · Telegram Post
• https://twitter.com/xvonfers/status/1941807083856216507 · Twitter Post