CVE-2026-2889: CCExtractor mp4.c processmp4 use after free

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-21 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was detected in CCExtractor up to 0.96.5. Affected is the function processmp4 in the library src/lib_ccx/mp4.c. Performing a manipulation results in use after free. The attack is only possible with local access. The exploit is now public and may be used. Upgrading to version 0.96.6 is able to address this issue. The patch is named fd7271bae238ccb3ae8a71304ea64f0886324925. You should upgrade the affected component.

Affected products

CCExtractor: 0.96.0, 0.96.1, 0.96.2, 0.96.3, 0.96.4, 0.96.5

References

https://github.com/CCExtractor/ccextractor/
https://github.com/CCExtractor/ccextractor/commit/fd7271bae238ccb3ae8a71304ea64f0886324925
https://github.com/CCExtractor/ccextractor/issues/2055
https://github.com/CCExtractor/ccextractor/pull/2057
https://github.com/CCExtractor/ccextractor/releases/tag/v0.96.6
https://github.com/oneafter/0123/blob/main/cc3/repro
https://vuldb.com/?ctiid.347182
https://vuldb.com/?id.347182
https://vuldb.com/?submit.755029

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