[UPDATE] [hoch] WebKitGTK: Mehrere Schwachstellen

CSIRTS triage

What

Multiple vulnerabilities in WebKitGTK allow remote code execution, denial of service, security bypass, and information disclosure.

Who is affected

Systems running WebKitGTK are affected.

Urgency

High priority; multiple critical attack vectors affecting availability and confidentiality.

Action

Update WebKitGTK to a version addressing all listed CVEs immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-09-04

Exploitation

Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-1069

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2023-428750.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2023-429700.56% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-242230.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-312040.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-312050.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-312060.96% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 60% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-312150.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2025-312571.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 63% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• medium[UPDATE] [mittel] Oracle Java SE: Mehrere Schwachstellencert-bund

Recent advisories for WebKitGTK

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• high[UPDATE] [hoch] WebKitGTK: Schwachstelle ermöglicht Codeausführungcert-bund · 2026-09-15
• high[UPDATE] [hoch] WebKitGTK: Schwachstelle ermöglicht Codeausführungcert-bund · 2026-09-15
• high[UPDATE] [hoch] WebKitGTK: Mehrere Schwachstellencert-bund · 2026-09-14
• medium[UPDATE] [mittel] WebKitGTK: Mehrere Schwachstellencert-bund · 2026-09-04
• highexploited[UPDATE] [hoch] WebKitGTK: Mehrere Schwachstellencert-bund · 2026-09-04
• highexploited[UPDATE] [hoch] WebKitGTK: Mehrere Schwachstellencert-bund · 2026-09-04

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