CriticalCISA KEVExploited in the wildPublic exploit

Skia integer overflow sandbox escape in Google Chrome

IdentifiersCVE-2023-6345CWE-190· Integer Overflow or Wraparound

CVE-2023-6345 is an integer overflow vulnerability in Skia, the graphics library used by Google Chrome. It affects Google Chrome prior to 119.0.6045.199. According to the provided content, the flaw could be triggered via a malicious file and, if the attacker had already compromised the renderer process, could be used to potentially escape Chrome's sandbox. The supporting context indicates this class of Skia issue can involve malformed graphics data causing size or buffer calculations to overflow, which can in turn lead to memory corruption during graphics processing.

For your environment

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow an attacker who already has code execution in the compromised Chrome renderer process to break out of the renderer sandbox. This would enable execution or actions beyond the renderer's normal isolation boundaries, materially increasing attacker privileges within the browser or host context and facilitating follow-on compromise.

Mitigation

If you can’t patch tonight, do this now.

Until patching is completed, reduce exposure to untrusted files and content that may invoke Skia parsing or rendering paths, and use Chrome's latest stable build with all automatic updates enabled. Standard hardening measures such as minimizing renderer compromise opportunities and restricting delivery of untrusted files may reduce exploitability, but the primary mitigation is vendor patching.

Remediation

Patch, then assume compromise.

Update Google Chrome to version 119.0.6045.199 or later, as the vulnerability affects versions prior to that release. Apply the corresponding Chromium/Chrome security updates across all supported platforms.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

DebianDebian Linuxoperating_system

Fedora ProjectFedoraoperating_system

GoogleChromeapplication

Microsoft CorporationEdge Chromiumapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

zeropath blogNews

Sep 5, 2025

Android Skia Heap Buffer Overflow (CVE-2025-32318): Brief Summary and Patch Guidance - ZeroPath Blog | ZeroPath

A prior Skia vulnerability referenced as a similar case involving malicious graphics data leading to memory corruption and privilege escalation.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2023-6345

NVD

nvd.nist.gov/vuln/detail/CVE-2023-6345

MITRE CWE · CWE-190

Integer Overflow or Wraparound

Third Party Advisory

security.gentoo.org/glsa/202401-34

Release Notes

chromereleases.googleblog.com/2023/11/stable-channel-update-for-desktop_28.html

Mailing List

debian.org/security/2023/dsa-5569

Permissions Required

crbug.com/1505053

US Government Resource

cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6345