Low 3.3Published Jul 6, 2026

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

Updated under an hour ago (Oct 27, 2026, 1:10 PM ET)

Does this affect you?

It affects n/a GPAC. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for n/a GPAC

Exploited in the last 30 days

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: 3.3 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
Weakness (CWE): CWE-415, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jul 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a GPAC gpac:gpac	2.5-DEV	CNA record

References

References

https://vuldb.com/vuln/376292	vdb-entry, technical-description
https://vuldb.com/vuln/376292/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2025-15667	third-party-advisory
https://vuldb.com/submit/846839	third-party-advisory
https://github.com/gpac/gpac/issues/3403	issue-tracking
https://github.com/TimChan2001/pocs/raw/refs/heads/main/poc-gpac-1	exploit
https://github.com/gpac/gpac/commit/f29f955f2a3b5e8e507caad3e52319f961bf37bf	patch
https://github.com/gpac/gpac/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.