CVE-2026-124312— Fraunhofer HHI VVdeC through 3.2.1 Heap Out-of-Bounds Read via CodingStructure::getColInfo

Quick assessment

Affected

fraunhoferhhi vvdec

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fraunhofer HHI 的 VVdeC 版本 3.2.1 及更早版本中存在一个堆越界读取漏洞。攻击者可通过提供分辨率不同的共置图像（collocated picture），使解码器崩溃。攻击者可构造一个 VVC 比特流，启用 TMVP（时域运动矢量预测），并指定一个尺寸更小的共置参考图像；在启用错误隐藏（error concealment）功能时，这将导致函数读取超出分配内存的范围。

CVSS 4.7 · Medium Updated Nov 07, 2026

Possible ATT&CK Techniques 2 AI

T1068 · Exploitation for Privilege Escalation T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Fraunhofer HHI VVdeC through 3.2.1 Heap Out-of-Bounds Read via CodingStructure::getColInfo

Source: CVE Program / CVE List V5

Vulnerability Description

Fraunhofer HHI VVdeC through 3.2.1 contains a heap out-of-bounds read vulnerability that allows attackers to crash the decoder by supplying a collocated picture of different resolution. Attackers can craft a VVC bitstream enabling TMVP with a smaller collocated reference picture, causing getColInfo to read past the colMotion allocation when error concealment is enabled.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

跨界内存读

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
fraunhoferhhi	vvdec	0 ~ 3.2.1	-

II. Public POCs for CVE-2026-124312

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-124312

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Other References for CVE-2026-124312 (6)

https://github.com/fraunhoferhhi/vvdec/commit/0695c06221c27b3680fec9851ac2cf46b2195ea9 patch
https://github.com/fraunhoferhhi/vvdec product
https://github.com/fraunhoferhhi/vvdec/issues/422 issue-tracking
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.1/source/Lib/CommonLib/CodingStructure.cpp#L453-L458 technical-description
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.1/source/Lib/CommonLib/Slice.cpp#L1819-L1859 technical-description
https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-through-3.2.1-heap-out-of-bounds-read-via-codingstructure-getcolinfo third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-124312

Same Patch Batch · fraunhoferhhi · 2026-11-07 · 6 CVEs total

CVE-2026-124310	6.1 MEDIUM	Fraunhofer HHI VVdeC before 3.2.1 Out-of-Bounds Read via Slice::getRefPic
CVE-2026-124309	6.1 MEDIUM	Fraunhofer HHI VVdeC before 3.2.1 Heap Out-of-Bounds Read via SEIReader::xParseSEIScalable
CVE-2026-124308	5.8 MEDIUM	Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufs
CVE-2026-124307	5.8 MEDIUM	Fraunhofer HHI VVdeC before 3.2.1 Heap Use-After-Free via ALF APS Redefinition
CVE-2026-124311	5.5 MEDIUM	Fraunhofer HHI VVdeC through 3.2.1 NULL Pointer Dereference via InterPrediction::xPredInte

IV. Related Vulnerabilities

Same product: vvdec

Same vendor: fraunhoferhhi

Same weakness: CWE-125