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No exploitation reportedAwaiting NVD analysis

CVE-2026-114165

HEVC Video Extensions Remote Code Execution Vulnerability

No exploitation reported by the sources we read.

  • Published2026-11-10
  • WeaknessCWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

Timeline

dates in UTC
  1. 2026-11-1018:15CVE publishedCNA

Versions per branch

Products declared by the CNA

As microsoft, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Microsoft HEVC Video Extensions

    platforms: Windows 10 version 1809, Windows 10 version 21H2, Windows 10 version 22H2, Windows 11 version 23H2, Windows 11 version 24H2, Windows 11 version 25H2, Windows 11 version 26H1, Windows 11 version 26H2

    Affected
    • ≥ 1.0.0, < 2.4.151.0fixed in 2.4.151.0custom
  • Microsoft HEVC Video Extensions for Licensed Applications

    platforms: Windows 10 version 1809, Windows 10 version 21H2, Windows 10 version 22H2, Windows 11 version 23H2, Windows 11 version 24H2, Windows 11 version 25H2, Windows 11 version 26H1, Windows 11 version 26H2

    Affected
    • ≥ 2.0.0.0, < 2.4.150.0fixed in 2.4.150.0custom
  • Microsoft HEVC Video Extensions from Device Manufacturer

    platforms: Windows 10 version 1809, Windows 10 version 21H2, Windows 10 version 22H2, Windows 11 version 23H2, Windows 11 version 24H2, Windows 11 version 25H2, Windows 11 version 26H1, Windows 11 version 26H2

    Affected
    • ≥ 2.0.0.0, < 2.4.149.0fixed in 2.4.149.0custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-10

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-114165 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.17.82026-11-10
  • NVDCVSS 3.17.8read 2026-11-10
  • CNAweakness (CWE)CWE-1222026-11-10
  • NVDweakness (CWE)CWE-122read 2026-11-10

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-11-10
Last Modified
2026-11-10
NVD status
Awaiting Analysis

Frequently asked questions

What is CVE-2026-114165?

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

Is CVE-2026-114165 actively exploited?

Active exploitation of CVE-2026-114165 has not been confirmed.

What is the CVSS score for CVE-2026-114165?

CVE-2026-114165 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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