CVE-2025-6558
Actively exploited. CVE-2025-6558 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-07-22) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2025-6558 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Chrome / Microsoft Edge ausnutzen, um Sicherheitsmaßnahmen zu umgehen und nicht spezifizierte Angriffe auszuführen, möglicherweise um beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.
CSIRTS triage
- What
- Multiple vulnerabilities in WebKitGTK allow attackers to disclose information, cause denial of service, perform cross-site scripting, bypass security measures, or conduct unspecified attacks.
- Who is affected
- Systems running WebKitGTK across multiple versions.
- Urgency
- Immediate remediation required; vulnerabilities are actively exploited in the wild.
- Action
- Update WebKitGTK to the latest patched version as soon as possible.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 95% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2025-6558 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (3)
- highexploited[UPDATE] [hoch] Google Chrome / Microsoft Edge: Mehrere Schwachstellencert-bund · 2026-09-14
- highexploited[UPDATE] [hoch] WebKitGTK: Mehrere Schwachstellencert-bund · 2026-09-04
- criticalexploitedCVE-2025-6558: Google Chromium ANGLE and GPU Improper Input Validation Vulnerabilitycisa-kev · 2025-07-22
External references
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[](https://www.csirts.com/cve/CVE-2025-6558)