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PatchSiren cyber security CVE debrief

CVE-2023-3079 Google CVE debrief

CVE-2023-3079 affects Google Chromium V8 and was added to CISA’s Known Exploited Vulnerabilities catalog on 2023-06-07. Because CISA flags it as known exploited, organizations should treat remediation as urgent and apply vendor updates without delay.

Vendor
Google
Product
Chromium V8
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2023-06-07
Original CVE updated
2023-06-07
Advisory published
2023-06-07
Advisory updated
2023-06-07

Who should care

Security teams, browser administrators, and owners of systems that use Chromium-based browsers or embed Google V8 should prioritize this issue, especially where endpoints are widely exposed to web content or where patching is centrally managed.

Technical summary

The vulnerability is described as a type confusion issue in Google Chromium V8. In practice, this means the engine can mis-handle object types during execution, which is a serious correctness and security flaw in a browser JavaScript engine. CISA’s KEV listing indicates the issue was known to be exploited in the wild by the date it was added.

Defensive priority

Urgent. This is a KEV-listed vulnerability with a vendor product in a widely deployed browser engine, so remediation should be prioritized immediately according to vendor guidance and internal patch SLAs.

Recommended defensive actions

  • Apply the vendor-recommended updates for Chromium/V8 as soon as possible.
  • Verify that all Chromium-based browsers and any products embedding V8 are covered by your patch inventory.
  • Prioritize externally exposed and user-facing endpoints first.
  • Confirm version compliance across managed desktops, servers, and virtual desktop environments.
  • Track CISA KEV deadlines and close any remediation gaps before the due date.
  • Validate that update channels are functioning and that rollback exceptions are documented and time-bounded.

Evidence notes

CISA’s Known Exploited Vulnerabilities catalog lists this item as 'Google Chromium V8 Type Confusion Vulnerability' with dateAdded 2023-06-07 and dueDate 2023-06-28, and the source notes point to the official Chromium release advisory and NVD record. The supplied corpus does not include a CVSS score, so severity is based on the KEV designation and vendor/product context.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-3079 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-3079

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2023-3079 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-3079

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.