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PatchSiren cyber security CVE debrief

CVE-2023-4762 Google CVE debrief

CVE-2023-4762 is a Google Chromium V8 type confusion vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2024-02-06. Because it is listed in KEV, defenders should treat it as a high-priority issue and follow vendor guidance promptly. The supplied corpus does not include deeper technical detail or CVSS scoring, so remediation urgency here is driven primarily by known exploitation status and the vendor-cited update path referenced by CISA.

Vendor
Google
Product
Chromium V8
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2024-02-06
Original CVE updated
2024-02-06
Advisory published
2024-02-06
Advisory updated
2024-02-06

Who should care

Security teams responsible for Google Chromium, Chromium-based browsers, and any products that embed or depend on V8. This is especially important for organizations that allow browser updates to lag, rely on managed desktop fleets, or package Chromium components into other software.

Technical summary

The available source material identifies the issue only as a type confusion vulnerability in Chromium V8. CISA’s KEV entry confirms it is a known exploited vulnerability and points to vendor mitigation guidance. No exploit mechanics, attack preconditions, or impact specifics are provided in the supplied corpus, so detailed technical characterization should be taken from the official vendor and vulnerability records linked below.

Defensive priority

High. CISA KEV listing indicates known exploitation and gives a remediation due date of 2024-02-27. Organizations should prioritize this over routine patch queues and verify that affected Chromium/V8 deployments are updated or otherwise mitigated.

Recommended defensive actions

  • Apply the vendor’s mitigations or update guidance referenced by CISA as soon as possible.
  • Update Chromium-based browsers and any software embedding V8 to the latest fixed release available from the vendor.
  • If mitigations are not available for a deployed product, discontinue use of the affected product until remediation is possible, following CISA’s required action guidance.
  • Inventory internal and third-party applications that bundle Chromium or V8 so they are not missed during patching.
  • Confirm remediation is completed before the CISA KEV due date of 2024-02-27, or document compensating controls if immediate update is not possible.

Evidence notes

Evidence is limited to the supplied KEV metadata and official links. The CISA KEV entry names the vulnerability as "Google Chromium V8 Type Confusion Vulnerability," marks it as a known exploited vulnerability, and sets dateAdded to 2024-02-06 with dueDate 2024-02-27. CISA’s notes reference the Chrome stable channel update blog and the NVD record, but the corpus does not provide the full vendor advisory text or detailed impact analysis.

Official resources

Publicly disclosed in the supplied records and added to CISA’s Known Exploited Vulnerabilities catalog on 2024-02-06. The source corpus does not include exploit code or reproduction details.