Vulnerability Description
Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon::createSubPicRefBufs because decompressPicture clears m_subPicExtTasks without waiting for pending tasks. Attackers can supply a crafted multi-subpicture VVC bitstream to decoders using two or more threads, causing heap memory corruption or a decoder crash.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/fraunhoferhhi/vvdec
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibR
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibR
- https://github.com/fraunhoferhhi/vvdec/commit/8a0def8ba6050412d33e69a6f1e66e287b
- https://github.com/fraunhoferhhi/vvdec/issues/392
- https://github.com/fraunhoferhhi/vvdec/issues/403
- https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-use-after
FAQ
What is CVE-2026-124308?
CVE-2026-124308 is a vulnerability with a CVSS score of 5.8 (MEDIUM). Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon::createSubPicRefBufs because decompressPicture clears m_subPicExtTasks without waiting for pending tasks. ...
How severe is CVE-2026-124308?
CVE-2026-124308 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-124308?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.