CVE-2026-70351: Microsoft WebP Image Extension Remote Code Execution Vulnerability

Published Sep 8, 2026
·
Updated

Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.

Other sources

Microsoft WebP Image Extension Remote Code Execution Vulnerability

Microsoft

Affected Software

1 affected componentFixes available
Microsoft WebP Image Extension<1.2.31.0
1.2.31.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.2.31.0

Event History

Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:12 PM
Data Sourced
via MITRE·05:12 PM
DescriptionSeverity
Data Sourced
via NVD·06:20 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What does an attacker need to do to exploit this issue?

The issue is remotely exploitable without authentication, but it requires user interaction. The provided data does not specify the exact interaction or delivery method.

2

What is the potential impact if exploitation succeeds?

Successful exploitation can allow remote code execution. The supplied severity vector indicates high impact to confidentiality, integrity, and availability.

3

Which product is affected?

The affected software identified in the data is Microsoft WebP Image Extension. No affected versions, fixed versions, or configuration details are provided.

Contact

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