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TI-2026-56166 Aliases CVE-2026-81353GHSA-cpq5-3rf7-qrjm

HEIF Image Extensions Remote Code Execution Vulnerability

Priority LOW 36CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00466 40th percentileScored 2026-11-07
Fix Fixed HEIF Image Extension (Microsoft): 1.2.48.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftHEIF Image Extension1.0.0.0 to before 1.2.48.01.2.48.0Patch availableCNA
  • HEIF Image Extension VendorMicrosoft Affected 1.0.0.0 to before 1.2.48.0 Fixed in 1.2.48.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:heif_image_extension:*:*:*:*:*:*:*:*before 1.2.48.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:heif_image_extension:*:*:*:*:*:*:*:* Versions before 1.2.48.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA HEIF Image Extension (Microsoft) Fixed in 1.2.48.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
HEIF Image ExtensionFixed 1.2.48.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81353
  2. 2026-10-03 Alias added: GHSA-cpq5-3rf7-qrjm

References

Patch 1

  • TI-2025-38992 Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because… CVSS 3.1CRITICAL 9.1
  • TI-2022-08327 HEIF Image Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2020-13079 HEIF Image Extensions Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences