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VulnerabilityPublished

CVE-2026-7940: Google Chrome · Use After Free

Affects Google ChromeSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 148.0.7778.96 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 148.0.7778.96
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Google Chrome to 148.0.7778.96.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=148.0.7778.96 <148.0.7778.96
Fixed in
  • 148.0.7778.96

AI-suggested

A fixed version of Google Chrome (148.0.7778.96 or later) is available as per the vendor's stable channel update advisory (https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html). Users and administrators should update to this version or later to remediate the vulnerability. No other mitigations are specified by the vendor.

Description

CVE-2026-7940 is a use-after-free vulnerability in the V8 engine of Google Chrome versions prior to 148.0.7778.96. This flaw allows an attacker to execute arbitrary code within the Chrome sandbox by tricking a user into installing a malicious Chrome extension. The vulnerability has a high severity rating with a CVSS score of 8.8. There are no known exploits in the wild at this time. The vendor advisory linked indicates a stable channel update addressing this issue is available.

References

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