What’s Vulnerable › Vulnerabilities

CVE-2025-15667: GPAC MP4Box avc_ext.c gf_isom_nalu_sample_rewrite double free

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-06 · updated 2026-10-12
• Weakness: CWE-119

Description

A vulnerability was determined in GPAC up to 2.5-DEV. This vulnerability affects the function gf_isom_nalu_sample_rewrite of the file src/isomedia/avc_ext.c of the component MP4Box. This manipulation of the argument nalu_out_bs causes double free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: f29f955f2a3b5e8e507caad3e52319f961bf37bf. To fix this issue, it is recommended to deploy a patch.

Affected products

• GPAC: 2.5-DEV

References

• https://github.com/TimChan2001/pocs/raw/refs/heads/main/poc-gpac-1
• https://github.com/gpac/gpac/
• https://github.com/gpac/gpac/commit/f29f955f2a3b5e8e507caad3e52319f961bf37bf
• https://github.com/gpac/gpac/issues/3403
• https://vuldb.com/cve/CVE-2025-15667
• https://vuldb.com/submit/846839
• https://vuldb.com/vuln/376292
• https://vuldb.com/vuln/376292/cti

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