CVE-2025-55651 json
A NULL pointer dereference in the gf_isom_get_user_data_count function (isomedia/isom_read.c) of GPAC MP4Box v2.4 allows attackers to cause…
published 2026-06-09 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2025-210090
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
A NULL pointer dereference in the gf_isom_get_user_data_count function (isomedia/isom_read.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/4/4_poc.mp4 referenced PoC, tagged "exploit" by a source, unverified
- infosec.exchange https://infosec.exchange/@sigdevel/116710512103919834 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/sigdevel/pocs/blob/main/res/gpac/MP4Box/4/4_poc.mp4
exploit
-
infosec.exchange
/@sigdevel/116710512103919834
exploit, mitigation, third-party-advisory
- openwall.com /lists/oss-security/2026/06/13/18
Sources
- CVE List CVE-2025-55651
- NVD CVE-2025-55651
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