CVE-2026-124308
Medium
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.
SeverityMedium
CVSS5.8
Exploit probability—
ProductFraunhoferhhi Vvdec
PublishedNov 7, 2026
First seenNov 7, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- fraunhoferhhi vvdec3.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fraunhoferhhi vvdec | v < 3.2.1 | 3.2.1 |
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