CVE-2025-15667

GPAC MP4Box avc_ext.c gf_isom_nalu_sample_rewrite double free

CVSS 4.8 MEDIUMCWE-119 CWE-415

Vexday Risk Score

30Low

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 4.8EPSS —KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado

Lifecycle

06 Jul 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Affected products

n/a · GPAC

public PoCs found — 1

cve_referencegithub.com/TimChan2001/pocs/raw/refs/heads/main/poc-gpac-1unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

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