How severe is CVE-2023-6345?

CVE-2023-6345 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-6345 being actively exploited?

Yes. CVE-2023-6345 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-11-30, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-6345?

CVE-2023-6345 primarily affects Google Chrome. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-6345?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-6345 have an EU (EUVD) identifier?

Yes. CVE-2023-6345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58586. It is also flagged as exploited in the EUVD (since 2023-11-30).

When was CVE-2023-6345 published?

CVE-2023-6345 was published on 2023-11-29 and last updated on 2026-06-17.

CVE-2023-6345

CVE-2023-6345 is a critical-severity vulnerability in Google Chrome with a CVSS 3.x base score of 9.6. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-11-30). The underlying weakness is classified as CWE-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-11-30)
EU (EUVD) id: EUVD-2023-58586
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-11-30)
Weakness: CWE-190
Affected product: Google Chrome
Published: 2023-11-29
Last modified: 2026-06-17

Description

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)

Frequently asked questions

What is CVE-2023-6345?: 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 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-6345 being actively exploited?: Yes. CVE-2023-6345 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-11-30, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-6345?: CVE-2023-6345 primarily affects Google Chrome. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-6345?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-6345 have an EU (EUVD) identifier?: Yes. CVE-2023-6345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58586. It is also flagged as exploited in the EUVD (since 2023-11-30).
When was CVE-2023-6345 published?: CVE-2023-6345 was published on 2023-11-29 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

More vulnerabilities in Google Chrome

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2015-8548 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Google V8 before 4.7.80.23, as used in Google Chrome before 47.0.2526.80, allow…
CVE-2015-6791 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Google Chrome before 47.0.2526.80 allow attackers to cause a denial of service…
CVE-2015-6788 — Critical (CVSS 10.0): The ObjectBackedNativeHandler class in extensions/renderer/object_backed_native_handler.cc in the extensions subsystem…
CVE-2015-8480 — Critical (CVSS 10.0): The VideoFramePool::PoolImpl::CreateFrame function in media/base/video_frame_pool.cc in Google Chrome before…
CVE-2015-6787 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Google Chrome before 47.0.2526.73 allow attackers to cause a denial of service…

All CVEs affecting Google Chrome →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-24814 — Critical (CVSS 10.0): Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is…
CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

Browse all CWE-190 (Integer Overflow or Wraparound) vulnerabilities →