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VULNERABILITIES

CVE-2026-124307 Details

Description

Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability that allows attackers to corrupt memory by redefining an ALF adaptation parameter set id still referenced by slices. Attackers can supply a crafted VVC bitstream that, with multithreaded decoding, makes worker threads dereference freed APS objects in CABACReader::readAlf() and AdaptiveLoopFilter::reconstructCoeff(), causing crashes or heap corruption.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.8 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/fraunhoferhhi/vvdec [email protected]
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/ParameterSetManager.h#L97 [email protected]
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L2570 [email protected]
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/CABACReader.cpp#L428-L429 [email protected]
https://github.com/fraunhoferhhi/vvdec/commit/1eddb30c4b8e02f3d13ba24aa7e52f1aa7b08c01 [email protected]

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-124307
NVD Published Date:
Nov 7, 2026
NVD Last Modified:
Nov 7, 2026
Source:
[email protected]
CVE-2026-124307 Details - Not Deferred