CVE-2026-108400
High
Description
Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.
SeverityHigh
CVSS8.8
Exploit probability—
Product
HEVC Video Extensions
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- Microsoft HEVC Video Extensions2.4.87.0 or later
- Microsoft HEVC Video Extensions for Licensed Applications2.4.85.0 or later
- Microsoft HEVC Video Extensions from Device Manufacturer2.5.25.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft HEVC Video Extensions | 1.0.0 ≤ v < 2.4.87.0 | 2.4.87.0 |
| Microsoft HEVC Video Extensions for Licensed Applications | 2.0.0.0 ≤ v < 2.4.85.0 | 2.4.85.0 |
| Microsoft HEVC Video Extensions from Device Manufacturer | 2.0.0.0 ≤ v < 2.5.25.0 | 2.5.25.0 |
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