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CVE-2026-16423 Google CVE debrief

A high-severity use after free vulnerability was discovered in Google Chrome prior to version 150.0.7871.182. The vulnerability, tracked as CVE-2026-16423, could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability affects the UI component of Google Chrome and has a CVSS score of 8.8. Users are advised to update to the latest version of Google Chrome to mitigate this vulnerability. The CVE record was published on 2026-07-21T23:16:59.923Z and last modified on 2026-07-22T14:17:17.250Z.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-07-22
Advisory published
2026-07-21
Advisory updated
2026-07-22

Who should care

Users of Google Chrome prior to version 150.0.7871.182 should be aware of this vulnerability and take steps to update their browser to the latest version. This vulnerability affects the UI component of Google Chrome and has a CVSS score of 8.8. Operators, platform administrators, vulnerability management teams, and security teams should review the official CVE record and NVD entry for the latest information.

Technical summary

CVE-2026-16423 is a use after free vulnerability in the UI component of Google Chrome prior to version 150.0.7871.182. This vulnerability could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. The vulnerability has a CVSS score of 8.8 and is considered high severity. The CVE record was published on 2026-07-21T23:16:59.923Z and last modified on 2026-07-22T14:17:17.250Z. There is no information available on known affected scope or exploitation.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 150.0.7871.182 or later
  • Ensure that all users of Google Chrome are aware of this vulnerability and take steps to update their browser
  • Monitor for any suspicious activity related to this vulnerability
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-21T23:16:59.923Z and last modified on 2026-07-22T14:17:17.250Z. The NVD entry is currently in the 'Received' status. The vulnerability has a CVSS score of 8.8 and is considered high severity. There is no information available on known affected scope or exploitation. Defenders should verify the official CVE record and NVD entry for the latest information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-16423 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-16423

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

  • CVE-2026-16423 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-16423

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

Supplemental references

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.