# Google Chromium Skia: Integer Overflow (CVE-2023-6345) · pwn.watch

> Google Chromium Skia contains an integer overflow vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products. Added to CISA KEV on 2023-11-30.

Page: https://pwn.watch/i/google-chromium-skia-cve-2023-6345 · generated 2026-10-22T21:04:29.518Z

## Status
- Severity: critical · status: closed · patch: patched
- Product: Google Chromium Skia
- Started: 2023-11-30 · closed: 2023-11-30
- CVEs: CVE-2023-6345
- Affected: See vendor advisory / CISA notes (versions not always listed in KEV feed)
- Fixed in: See vendor advisory linked in sources

## Follow this incident
- RSS (one item per update): https://pwn.watch/i/google-chromium-skia-cve-2023-6345/feed.xml
- JSON Feed: https://pwn.watch/i/google-chromium-skia-cve-2023-6345/feed.json
- Full data (timeline, sources, posts, agentBrief): https://pwn.watch/i/google-chromium-skia-cve-2023-6345.json
- This file: https://pwn.watch/i/google-chromium-skia-cve-2023-6345/llms.txt

## Updates (newest first)
- 2023-11-30: CISA added CVE-2023-6345 to the KEV catalog (due 2023-12-21).

## Fix brief
# Security brief: Google Chromium Skia: Integer Overflow (CVE-2023-6345)

Source: https://pwn.watch/i/google-chromium-skia-cve-2023-6345 · status: closed (closed Nov 30, 2023) · severity: critical · updated Nov 30, 2023

## Patch status
**PATCHED: fixed releases exist. Upgrade to a fixed version.**

## What it is
Google Chromium Skia contains an integer overflow vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products. Added to CISA KEV on 2023-11-30.

Severity detail: CVSS 9.6 (NVD), actively exploited (CISA KEV)

- Product: Google Chromium Skia
- CVE / advisory ids: CVE-2023-6345

## Affected versions
- See vendor advisory / CISA notes (versions not always listed in KEV feed)

## Check whether you're affected
No generic command applies (the product is a hosted service, appliance or desktop app). Check the installed version in its admin UI / About screen and compare with the versions above.

## Fix
Upgrade to one of these fixed versions (or later on the same branch):
- See vendor advisory linked in sources

After upgrading, re-run the checks above and redeploy/restart the affected services.

## Latest updates
- Nov 30, 2023: CISA added CVE-2023-6345 to the KEV catalog (due 2023-12-21).

## Advisories
- [NVD: CVE-2023-6345](https://nvd.nist.gov/vuln/detail/CVE-2023-6345) (NVD)
- [CISA Known Exploited Vulnerabilities Catalog](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) (CISA)

## Caveats
Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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Machine-readable: https://pwn.watch/i/google-chromium-skia-cve-2023-6345.json · all incidents: https://pwn.watch/incidents.json. Verify against the vendor advisory before changing production systems.