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Fencer Vulns
medium 4.3

CVE-2025-8582 json

Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents…

published 2025-08-07 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23903

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

Insufficient validation of untrusted input in Core in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

Patch / fix

  • google chrome 139.0.7258.66
  • chromium Debian 12 139.0.7258.66-1~deb12u1
  • chromium Debian 13 139.0.7258.127-1~deb13u1
  • chromium Debian 14 139.0.7258.66-1

debian advisories DEBIAN-CVE-2025-8582

  • chromium openSUSE Tumbleweed 139.0.7258.66-1.1

opensuse advisories openSUSE-SU-2025:15421-1

  • qt6-qtwebengine Alpine 3.22 6.8.3-r1
  • qt6-qtwebengine Alpine 3.22 6.8.3-r5
  • qt6-qtwebengine Alpine 3.24, Alpine 3.23 6.9.1-r3
  • qt6-qtwebengine Alpine 3.24, Alpine 3.23 6.9.3-r2

alpine advisories ALPINE-CVE-2025-8582

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2025-8582 updated cvss 4.3

chromium-browser: Insufficient validation of untrusted input in Core in Google Chrome

  • 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
partial
Assessed
15 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-20 Improper Input Validation
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.