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Fencer Vulns
high 8.8

CVE-2025-3066 json

Use after free in Site Isolation in Google Chrome prior to 135.0.7049.84 allowed a remote attacker to potentially exploit heap corruption v…

published 2025-04-02 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-9513

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

Use after free in Site Isolation in Google Chrome prior to 135.0.7049.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Patch / fix

  • google chrome 135.0.7049.84
  • chromium Debian 12 135.0.7049.84-1~deb12u1
  • chromium Debian 14, Debian 13 135.0.7049.84-1

debian advisories DEBIAN-CVE-2025-3066

  • chromium Package Hub 15 SP6, openSUSE Leap 15.6 135.0.7049.84-bp156.2.107.1
  • gn Package Hub 15 SP6, openSUSE Leap 15.6 0.20250306-bp156.2.6.1
  • chromium Package Hub 15 SP6, openSUSE Leap 15.6 135.0.7049.52-bp156.2.102.2
  • chromium openSUSE Tumbleweed 135.0.7049.52-2.1

opensuse advisories openSUSE-SU-2025:0120-1openSUSE-SU-2025:0115-1openSUSE-SU-2025:14967-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-3066 updated cvss 8.3

chromium-browser: Use after free in Navigations

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
19 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Google Chrome

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.