Intel

CVE-2026-93373

chrome: Use After Free (CVE-2026-93373)

criticalEPSS 0.3%

Description

Use after free in Extensions in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: High)

Source: Debian Security AdvisoriesMicrosoft Security Update GuideNVD (NIST)cvelistv5BSI WID PortalBSI CSAF

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

googlechrome
153.0.8010.52fixed from 153.0.8010.52

Metrics

XIEM Effective CVSS
9.6
Source: cna-v3
EPSS percentile
25.9 %
Elevated — this CVE ranks above at least 10% of all CVEs scored today.
KEV status
—
Show all metrics
Severity
critical
Priority score
83.36
Exploit maturity
no public PoC known
CVSS v3
9.6
EPSS score
0.3 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-09-30 20:24 UTC
CWE
CWE-416

Weakness classes (CWE)

  • CWE-416Variant

    Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

    cwe.mitre.org →

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. Initial Analysis2026-09-21 15:15 UTC· nvd@nist.gov
    • CPE Configuration: OR *cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* versions up to (excluding) 153.0.8010.52
    • Reference Type: Chrome: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html Types: Release Notes, Vendor Advisory
    • Reference Type: Chrome: https://issues.chromium.org/issues/553132214 Types: Permissions Required
  2. CVE Modified2026-09-19 04:18 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • SSVC: {"id":"CVE-2026-93373","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalI… → {"id":"CVE-2026-93373","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalI…
  3. CVE Modified2026-09-18 14:19 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
    • SSVC: {"id":"CVE-2026-93373","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalI…
  4. New CVE Received2026-09-17 21:17 UTC· chrome-cve-admin@google.com
    • Description: Use after free in Extensions in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: High)
    • CWE: CWE-416
    • Affected: New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/93xxx/CVE-2026-93373.json">CVE-2026-93373</a>
    • Reference: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html