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Low severity · published Jul 6, 2026
CVE-2025-15667
GPAC MP4Box avc_ext.c gf_isom_nalu_sample_rewrite double free
3.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GP
GPAC · Gpac
2.5-DEV · source: vendor
Affected product
GP
GPAC
Gpac
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-15667
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-15667
github.com
https://github.com/TimChan2001/pocs/raw/refs/heads/main/poc-gpac-1
github.com
https://github.com/gpac/gpac/
github.com
https://github.com/gpac/gpac/commit/f29f955f2a3b5e8e507caad3e52319f961bf37bf
github.com
https://github.com/gpac/gpac/issues/3403
vuldb.com
https://vuldb.com/cve/CVE-2025-15667
vuldb.com
https://vuldb.com/submit/846839
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