Actively exploited · Published Jul 15, 2025 · Assigned by Chrome
CVE-2025-6558
High 8.8 Exploited
In plain English
A high-severity improper input validation in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on July 22, 2025). The chance it is exploited in the next 30 days is estimated at 10.9% (higher than 96% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Aug 12, 2025.
Official description
Insufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | webkit2gtk3 | 2.48.5-1.el8_10 | ALSA-2025:13780 |
| AlmaLinux:9 | webkit2gtk3 | 2.48.5-1.el9_6 | ALSA-2025:13782 |
| AlmaLinux:8 | webkit2gtk3-devel | 2.48.5-1.el8_10 | ALSA-2025:13780 |
| AlmaLinux:9 | webkit2gtk3-devel | 2.48.5-1.el9_6 | ALSA-2025:13782 |
| AlmaLinux:8 | webkit2gtk3-jsc | 2.48.5-1.el8_10 | ALSA-2025:13780 |
| AlmaLinux:9 | webkit2gtk3-jsc | 2.48.5-1.el9_6 | ALSA-2025:13782 |
| AlmaLinux:8 | webkit2gtk3-jsc-devel | 2.48.5-1.el8_10 | ALSA-2025:13780 |
| AlmaLinux:9 | webkit2gtk3-jsc-devel | 2.48.5-1.el9_6 | ALSA-2025:13782 |
| Alpine:v3.22 | qt6-qtwebengine | 6.8.3-r1 | ALPINE-CVE-2025-6558 |
| Alpine:v3.23 | qt6-qtwebengine | 6.9.1-r3 | ALPINE-CVE-2025-6558 |
| Alpine:v3.24 | qt6-qtwebengine | 6.9.1-r3 | ALPINE-CVE-2025-6558 |
| Debian:12 | chromium | 138.0.7204.157-1~deb12u1 | DSA-5963-1 |
| Debian:12 | chromium | 138.0.7204.157-1~deb12u1 | DEBIAN-CVE-2025-6558 |
| Debian:13 | chromium | 138.0.7204.157-1 | DEBIAN-CVE-2025-6558 |
| Debian:14 | chromium | 138.0.7204.157-1 | DEBIAN-CVE-2025-6558 |
| Debian:12 | webkit2gtk | 2.48.5-1~deb12u1 | DSA-5978-1 |
| Debian:12 | webkit2gtk | 2.48.5-1~deb12u1 | DEBIAN-CVE-2025-6558 |
| Debian:13 | webkit2gtk | 2.48.5-1~deb13u1 | DSA-5978-1 |
| Debian:13 | webkit2gtk | 2.48.5-1~deb13u1 | DEBIAN-CVE-2025-6558 |
| Debian:14 | webkit2gtk | 2.48.5-1 | DEBIAN-CVE-2025-6558 |
| Debian:12 | wpewebkit | no fix listed | DEBIAN-CVE-2025-6558 |
| Debian:13 | wpewebkit | no fix listed | DEBIAN-CVE-2025-6558 |
| Debian:14 | wpewebkit | 2.48.5-1 | DEBIAN-CVE-2025-6558 |
| Rocky Linux:8 | webkit2gtk3 | 0:2.48.5-1.el8_10 | RLSA-2025:13780 |
| Rocky Linux:9 | webkit2gtk3 | 0:2.48.5-1.el9_6 | RLSA-2025:13782 |
| Ubuntu:22.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2025-6558 |
| Ubuntu:24.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2025-6558 |
| Ubuntu:22.04:LTS | webkit2gtk | 2.48.5-0ubuntu0.22.04.1 | USN-7702-1 |
| Ubuntu:22.04:LTS | webkit2gtk | 2.48.5-0ubuntu0.22.04.1 | UBUNTU-CVE-2025-6558 |
| Ubuntu:24.04:LTS | webkit2gtk | 2.48.5-0ubuntu0.24.04.1 | USN-7702-1 |
| Ubuntu:24.04:LTS | webkit2gtk | 2.48.5-0ubuntu0.24.04.1 | UBUNTU-CVE-2025-6558 |
| Ubuntu:25.10 | webkit2gtk | 2.48.6-1ubuntu2 | UBUNTU-CVE-2025-6558 |
| Ubuntu:22.04:LTS | wpewebkit | no fix listed | UBUNTU-CVE-2025-6558 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://chromereleases.googleblog.com/2025/07/stable-channel-update-for-desktop_15.html
- https://issues.chromium.org/issues/427162086
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6558 government-resource
- https://lists.debian.org/debian-lts-announce/2025/08/msg00015.html
- http://seclists.org/fulldisclosure/2025/Aug/0
- http://seclists.org/fulldisclosure/2025/Jul/37
- http://seclists.org/fulldisclosure/2025/Jul/35
- http://seclists.org/fulldisclosure/2025/Jul/32
- http://seclists.org/fulldisclosure/2025/Jul/30
- http://www.openwall.com/lists/oss-security/2025/08/02/1
- http://www.openwall.com/lists/oss-security/2026/09/30/18