CVSS v3
8.8
HIGH
EPSS Score
93.6%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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)
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)
Yes. CVE-2023-4863 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 10/4/2023.
CVE-2023-4863 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).