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VulnerabilityPublished

CVE-2026-3544: Google Chrome · Heap Buffer Overflow

Affects Google ChromeSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 145.0.7632.159 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
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 145.0.7632.159
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 4 Mar 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 145.0.7632.159.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=145.0.7632.159 <145.0.7632.159
Fixed in
  • 145.0.7632.159

AI-suggested

To mitigate CVE-2026-3544, organizations should immediately update all instances of Google Chrome to version 145.0.7632.159 or later, where the vulnerability is patched. Beyond patching, implement network-level protections such as web filtering to block access to known malicious sites and employ endpoint security solutions capable of detecting anomalous browser behavior. Educate users about the risks of interacting with untrusted web content and phishing attempts to reduce the likelihood of triggering the exploit. Consider deploying browser sandboxing or application isolation technologies to limit the impact of potential exploitation. Regularly monitor security advisories from Google and threat intelligence sources for any emerging exploit activity. For high-security environments, use browser configurations that disable or restrict WebCodecs API usage if feasible, or employ alternative browsers until patches are applied. Maintain comprehensive logging and incident response plans to quickly identify and respond to any exploitation attempts.

Description

Heap buffer overflow in WebCodecs in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

References

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