CVE-2023-6345
Google Skia Integer Overflow Vulnerability
Google Chromium Skia
Integer overflow in Skia in Google Chrome prior to 119.0.6045.199 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 30 November 2023. US federal agencies were required to remediate it by 21 December 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 16.5%, which is higher than 97% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Frequently asked questions
Is CVE-2023-6345 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-6345.
What does CVE-2023-6345 affect?
CVE-2023-6345 affects Google Chromium Skia. Integer overflow in Skia in Google Chrome prior to 119.0.6045.199 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)
How severe is CVE-2023-6345?
CVE-2023-6345 is rated CRITICAL with a CVSS base score of 9.6. EPSS puts the probability of exploitation in the next 30 days at 16.5%, higher than 97% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 21 December 2023.
How should organisations respond to CVE-2023-6345?
Apply the vendor patch for Google Chromium Skia as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.