Log in / Sign up

Vulnerability details

CVE-2026-5056

GStreamer GStreamer

GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability

CVSS 3.0
7.8High

Official description

GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.

CVSS scores

ScoreVersionSourceVector
7.8High 3.0 CVEProject cvelistV5 (CNA) (zdi) CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
GStreamer GStreamer a303670510771b993867ddf62bff3bce0cb988c3 CVEProject cvelistV5 (CNA)

References and advisories

3
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2026-07-29
Last updated
2026-07-30
State
Published
Assigner (CNA)
zdi

Exploit prediction (EPSS)

0.34%
Probability of exploitation in 30 days
27.7%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-121
    Stack-based Buffer Overflow