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Fencer Vulns
medium 4.3

CVE-2026-8559 json

Integer overflow in Internationalization in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to perform an out of…

published 2026-05-14 5 mo ago modified 2026-10-26 14 d ago also EUVD-2026-30473

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

Integer overflow in Internationalization in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

Patch / fix

  • google chrome 148.0.7778.168
  • chromium Debian 12 148.0.7778.167-1~deb12u1
  • chromium Debian 13 148.0.7778.167-1~deb13u1
  • chromium Debian 14 148.0.7778.167-1

debian advisories DEBIAN-CVE-2026-8559

  • chromium openSUSE Leap 16.0 148.0.7778.215-bp160.1.1
  • chromium openSUSE Tumbleweed 148.0.7778.167-2.1

opensuse advisories openSUSE-SU-2026:20849-1openSUSE-SU-2026:10786-1

  • qt6-qtwebengine Alpine 3.24 6.11.1-r1

alpine advisories ALPINE-CVE-2026-8559

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-2026-8559 updated cvss 8.8

chromium-browser: chromium-browser: Integer overflow in Internationalization

  • 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
5 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% 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-472 External Control of Assumed-Immutable Web Parameter
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.