Security readout for executives and security teams
Plain-English summary
CVE-2023-6345 is a serious Chrome graphics-library flaw that could let an attacker escape Chrome’s sandbox after already compromising the renderer process. The public record ties it to malicious file handling and CISA lists it as known exploited, so unmanaged or stale browser fleets need urgent attention.
Executive priority
Treat this as urgent endpoint hygiene. CISA KEV listing means exploitation is not theoretical, and a browser sandbox escape can materially raise the impact of web or file-based attacks. Patch and verify managed browsers promptly.
Technical view
The issue is a CWE-190 integer overflow in Skia affecting Google Chrome before 119.0.6045.199. The CVSS 3.1 vector is 9.6 critical, with network attack vector, user interaction required, changed scope, and high confidentiality, integrity, and availability impact after renderer compromise.
Likely exposure
Exposure is most likely on endpoints running Google Chrome before 119.0.6045.199. Linux environments using distributor Chromium packages should also verify Debian, Fedora, and Gentoo advisory coverage. The sources do not prove every Chromium-derived browser is affected, so validate each vendor separately.
Exploitation context
CISA KEV status supports known exploitation in the wild. The CVE description requires a compromised renderer process and a malicious file, so this should be treated as a post-renderer-compromise sandbox escape risk rather than a standalone initial-access bug.
Researcher notes
Evidence is strongest for Google Chrome before 119.0.6045.199 and distributor Chromium package advisories. Public details are limited, and the Chromium bug reference may restrict technical visibility. Avoid assuming exploit mechanics beyond renderer compromise, malicious file involvement, and sandbox escape potential.
Mitigation direction
- Update Google Chrome to 119.0.6045.199 or later.
- Apply Debian, Fedora, or Gentoo Chromium package updates where relevant.
- Confirm managed browser update policies are enforcing the fixed version.
- Check vendor guidance for any Chrome-derived browsers in use.
- Prioritize internet-facing and high-risk user workstations.
Validation and detection
- Inventory Chrome versions across managed endpoints.
- Confirm all Chrome installations report 119.0.6045.199 or later.
- Review Linux package versions against distributor advisories.
- Check vulnerability scanner results for CVE-2023-6345 closure.
- Verify browser restart completion after updates.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-190: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-6345 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H2.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2023/11/stable-channel-update-for-desktop_28.htmlCVE reference
- https://crbug.com/1505053CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJROPNKWW65R34J4IYGTJ7A3OBPUL4IQ/CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T7ABNYMOI4ZHVCSPCNP7HQTOLGF53A2/CVE reference
- https://www.debian.org/security/2023/dsa-5569CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7XQNYZZA3X2LBJF57ZHKXWOMJKNLZYR/CVE reference
- https://security.gentoo.org/glsa/202401-34CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6345CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.