Back to CVE records
Medium 6.5Published Jun 23, 2026
CVE-2025-55639GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c.
Updated under an hour ago ()
Does this affect you?
It affects 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
GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.
- CVSS
- 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
gpac gpac gpac:gpac | before 26.02.0 | NVD |
References
- https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9patch
- https://github.com/gpac/gpac/issues/3260exploit, issue-tracking
- https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4exploit
- https://infosec.exchange/@sigdevel/116769184815236865exploit, patch, third-party-advisory
- http://www.openwall.com/lists/oss-security/2026/06/26/2exploit, mailing-list, third-party-advisory
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.