CVE-2023-46932: GPAC · Heap Buffer Overflow
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 1.1% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Dec 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Immediate mitigation should focus on restricting or monitoring the ingestion of untrusted or unauthenticated media files, especially MP4 files, to prevent processing of potentially malicious content.
- Employ application-layer sandboxing or containerization for GPAC/MP4Box processes to limit the impact of potential exploitation.
- Monitor system and application logs for abnormal crashes or suspicious activity related to media processing tools.
- Implement network-level controls to restrict access to systems running GPAC, limiting exposure to external attackers.
- Until an official patch is released, consider using alternative, secure multimedia processing tools or versions not affected by this vulnerability.
- Engage with the GPAC development community or vendor to obtain patches or security advisories promptly.
- Conduct regular vulnerability scanning and penetration testing focusing on media processing components to detect exploitation attempts.
- Educate relevant IT and security staff about this vulnerability and the risks of processing untrusted media files.
Description
Heap Buffer Overflow vulnerability in GPAC version 2.3-DEV-rev617-g671976fcc-master, allows attackers to execute arbitrary code and cause a denial of service (DoS) via str2ulong class in src/media_tools/avilib.c in gpac/MP4Box.