CVE-2022-30976 json
GPAC 2.0.0 misuses a certain Unicode utf8_wcslen (renamed gf_utf8_wcslen) function in utils/utf.c, resulting in a heap-based buffer over-re…
published 2022-05-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52692
- cvss
- 7.1
- 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 58%
- public exploits
- 0
- none known
Summary
GPAC 2.0.0 misuses a certain Unicode utf8_wcslen (renamed gf_utf8_wcslen) function in utils/utf.c, resulting in a heap-based buffer over-read, as demonstrated by MP4Box.
Patch / fix
- github.com/gpac/gpac/issues/2179 advisory
Exploit prediction
0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gpac/gpac/issues/2179 referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/gpac/gpac/blob/105d67985ff3c3f4b98a98f312e3d84ae77a4463/share/doc/man/gpac.1#L2226-L2229 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:H/Au:N/C:P/I:N/A:P |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/gpac/gpac/issues/2179
exploit, issue-tracking, patch, third-party-advisory
-
github.com
/gpac/gpac/blob/105d67985ff3c3f4b98a98f312e3d84ae77a4463/share/doc/man/gpac.1#L2226-L2229
exploit, third-party-advisory
-
github.com
/gpac/gpac/blob/105d67985ff3c3f4b98a98f312e3d84ae77a4463/src/utils/utf.c#L35-L59
third-party-advisory
Sources
- CVE List CVE-2022-30976
- NVD CVE-2022-30976
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.