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Vulnerability · Published Aug 26, 2025 · Assigned by Chrome

CVE-2025-9478

High 8.8

In plain English

A high-severity use-after-free in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.4% (higher than 94% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)7.4%top 5.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

Use after free in ANGLE in Google Chrome prior to 139.0.7258.154 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8webkit2gtk32.54.0-1.el8_10ALSA-2026:74084
AlmaLinux:9webkit2gtk32.54.0-1.el9_8ALSA-2026:69098
AlmaLinux:8webkit2gtk3-devel2.54.0-1.el8_10ALSA-2026:74084
AlmaLinux:9webkit2gtk3-devel2.54.0-1.el9_8ALSA-2026:69098
AlmaLinux:8webkit2gtk3-jsc2.54.0-1.el8_10ALSA-2026:74084
AlmaLinux:9webkit2gtk3-jsc2.54.0-1.el9_8ALSA-2026:69098
AlmaLinux:8webkit2gtk3-jsc-devel2.54.0-1.el8_10ALSA-2026:74084
AlmaLinux:9webkit2gtk3-jsc-devel2.54.0-1.el9_8ALSA-2026:69098
Debian:12chromium139.0.7258.154-1~deb12u1DSA-5988-1
Debian:12chromium139.0.7258.154-1~deb12u1DEBIAN-CVE-2025-9478
Debian:13chromium139.0.7258.154-1~deb13u1DSA-5988-1
Debian:13chromium139.0.7258.154-1~deb13u1DEBIAN-CVE-2025-9478
Debian:14chromium139.0.7258.154-1DEBIAN-CVE-2025-9478
Debian:12webkit2gtkno fix listedDEBIAN-CVE-2025-9478
Debian:13webkit2gtk2.54.0-1~deb13u1DEBIAN-CVE-2025-9478
Debian:14webkit2gtkno fix listedDEBIAN-CVE-2025-9478
Debian:12wpewebkitno fix listedDEBIAN-CVE-2025-9478
Debian:13wpewebkitno fix listedDEBIAN-CVE-2025-9478
Debian:14wpewebkit2.54.0-1DEBIAN-CVE-2025-9478
Rocky Linux:8webkit2gtk30:2.54.0-1.el8_10RLSA-2026:74084

Affected products (as reported)

VendorProductVersions
Google Chrome 139.0.7258.154 – before 139.0.7258.154

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References