Buffer overflow in Ccextractor
CVE-2026-2889
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (6.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- Ccextractor — versions 0.96.0, 0.96.1, 0.96.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/CCExtractor/ccextractor/issues/2055 (issue-tracking)
- github.com/CCExtractor/ccextractor/pull/2057 (issue-tracking)
- github.com/oneafter/0123/blob/main/cc3/repro (exploit)
- github.com/CCExtractor/ccextractor/commit/fd7271bae238ccb3ae8a71304ea64f0886324… (patch)
- github.com/CCExtractor/ccextractor/releases/tag/v0.96.6 (patch)
- github.com/CCExtractor/ccextractor/ (product)
Frequently asked questions
- What is CVE-2026-2889?
- CVE-2026-2889 is a low-severity vulnerability in Ccextractor, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-02-21.
- How severe is CVE-2026-2889?
- Low severity. CVSS v3 base score is 3.3 out of 10.