VVdeC before 3.2.1 has heap out-of-bounds read (CVE-2026-124309)
Parsing a scalable-nesting SEI can read past a heap buffer; the local bug is rated CVSS 6.1.
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CVE-2026-124309
Heap out-of-bounds read in Fraunhofer VVdeC before 3.2.1
- CVSS 4.0
- 6.9 medium
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
Fraunhofer HHI VVdeC before 3.2.1 has a heap out-of-bounds read in SEIReader::xParseSEIScalableNesting: the decoder casts the SEI wrapper object instead of its payload. A local attacker can supply a crafted VVC bitstream with a scalable-nesting SEI that nests a buffering-period SEI; opening it can crash the decoder or copy adjacent heap memory. No privileges are required, but the user must process the file.
What to do: Upgrade Fraunhofer HHI VVdeC to 3.2.1 or later.
| Product | Affected | Fixed in |
|---|---|---|
| Fraunhofer HHI VVdeC | before 3.2.1 | 3.2.1 |
Estimated exposure
nicheNo 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 out-of-bounds read vulnerability in SEIReader::xParseSEIScalableNesting that allows attackers to read past heap allocations by casting the SEI wrapper object instead of its payload. Attackers can supply a crafted VVC bitstream with a scalable nesting SEI containing a nested buffering period SEI to crash the decoder or copy adjacent heap memory.
- Weakness
- CWE-125
- Vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/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