CVE-2026-108400
Awaiting Analysis Awaiting Analysis - Queue

Integer Overflow in Windows Codecs Library Allows Code Execution

Vulnerability report for CVE-2026-108400, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
EUVD

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
Microsoft HEVC Video Extensions 1.0.0
Microsoft HEVC Video Extensions for Licensed Applications 2.0.0.0
Microsoft HEVC Video Extensions from Device Manufacturer 2.0.0.0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an integer overflow or wraparound flaw in the Microsoft Windows Codecs Library. It allows an unauthorized attacker to execute arbitrary code remotely over a network without needing prior access to the system.

Impact Analysis

An attacker could exploit this to run malicious code on your system, potentially leading to data theft, system compromise, or further network infiltration. It requires no user interaction but may need the victim to open a specially crafted file.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Codecs Library vulnerability. Monitor Microsoft's update guide for specific patches and install them promptly.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-108400. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart