SB2026111162 - Multiple vulnerabilities in HEVC Video Extensions

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Main Vulnerability Database SB2026111162

SB2026111162 - Multiple vulnerabilities in HEVC Video Extensions

Published: November 11, 2026

Security Bulletin ID SB2026111162
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Integer underflow (CVE-ID: CVE-2026-114164)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on the affected system.

The vulnerability exists due to integer underflow in Microsoft Windows Codecs Library when processing a specially crafted file. A remote attacker can trick a user into opening the crafted file to execute arbitrary code on the affected system.


2) Heap-based buffer overflow (CVE-ID: CVE-2026-114165)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on the victim's system.

The vulnerability exists due to a heap-based buffer overflow in Microsoft Windows Codecs Library when processing crafted media content. A remote attacker can trick a victim into opening a specially crafted file to execute arbitrary code on the victim's system.


3) Heap-based buffer overflow (CVE-ID: CVE-2026-114167)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on a victim's system.

The vulnerability exists due to a heap-based buffer overflow in Microsoft Windows Codecs Library when processing crafted media content. A remote attacker can trick a victim into opening a specially crafted file to execute arbitrary code locally on the victim's system.


Remediation

Install update from vendor's website.

References