VVdeC before 3.2.1 has heap use-after-free after aborted decode
CVE-2026-124308 scores 5.8 and needs local access, high complexity, and user interaction.
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CVE-2026-124308
Heap use-after-free in Fraunhofer HHI VVdeC before 3.2.1
- CVSS 4.0
- 5.8 medium
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
VVdeC before 3.2.1 has a heap use-after-free in DecLibRecon::createSubPicRefBufs: decompressPicture clears m_subPicExtTasks without waiting for pending tasks. A local attacker can supply a crafted multi-subpicture VVC bitstream to a decoder running two or more threads, after the user opens that bitstream. That can corrupt heap memory or crash the decoder.
What to do: Upgrade Fraunhofer HHI VVdeC to 3.2.1.
| Product | Affected | Fixed in |
|---|---|---|
| Fraunhofer HHI VVdeC | before 3.2.1 | 3.2.1 |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
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.
- Weakness
- CWE-416
- Vector
- CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X