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8.8 High

CVE-2023-4863 Google Chromium WebP Heap-Based Buffer Overflow Vulnerability

Active exploitation observed

· CISA KEV catalogue
Required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware campaigns Not observed so far
Weakness CWE-787

Description

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

Affected products and versions

Product Affected versions Fixed in
Chrome 116.0 earliest → < 116.0.5845.187 116.0.5845.187
libwebp 1.3 earliest → < 1.3.2 1.3.2

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