CVE-2026-124308

Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufs

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. Attackers can supply a crafted multi-subpicture VVC bitstream to decoders using two or more threads, causing heap memory corruption or a decoder crash.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: High
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: High

What each source reports

CVE List Score used 5.8

Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufs

Record: CVE-2026-124308
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
Weakness: CWE-416
Updated: 2026-11-07

EUVDEUVD-2026-119278 5.8

Record: EUVD-2026-119278
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-07

GitHub AdvisoriesGHSA-g75c-jvvc-4qf4 5.8

Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon:...

Record: GHSA-g75c-jvvc-4qf4
CVSS 4.0: 5.8 MediumCVSS: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
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
Weakness: CWE-416
Updated: 2026-11-07

NVD 5.8

Record: CVE-2026-124308
CVSS 4.0: 5.8 MediumCVSS: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
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
Weakness: CWE-416
Updated: 2026-11-07

Affected products

fraunhoferhhi vvdec

History

History
Recorded	Changed	Sources
Nov 7, 2026	published	EUVD, NVD
Nov 7, 2026	published	EUVD
Nov 7, 2026	aliases, references	GitHub Advisories
Nov 7, 2026	cwes, references, severity, title	CVE List
Nov 7, 2026	first indexed	EUVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-124308 is a medium vulnerability (CVSS 5.8) in Fraunhoferhhi Vvdec, published November 7, 2026. No source lists public exploit code. No source names a fixed version.