CVE-2021-31259 json
The gf_isom_cenc_get_default_info_internal function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference)…
published 2021-04-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18171
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
The gf_isom_cenc_get_default_info_internal function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.
Patch / fix
- github.com/gpac/gpac@3b84ffc commit
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gpac/gpac/issues/1735 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/gpac/gpac/commit/3b84ffcbacf144ce35650df958432f472b6483f8
patch, third-party-advisory
-
github.com
/gpac/gpac/issues/1735
exploit, third-party-advisory
Sources
- CVE List CVE-2021-31259
- NVD CVE-2021-31259
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