Answer in brief
CVE-2025-66287 records a High severity (CVSS 8.8) vulnerability in Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash. The current sources do not mark it as known exploited. The current feed maps The WebKitGTK Team/WebKitGTK (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-66287 records a High severity (CVSS 8.8) vulnerability in Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash. The current sources do not mark it as known exploited. The current feed maps The WebKitGTK Team/WebKitGTK (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps The WebKitGTK Team/WebKitGTK (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| The WebKitGTK Team/WebKitGTKgeneric | >=0 <2.50.3 | 2.50.3 |
Published upstream
Dec 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.
Quoted source text, attributed separately from HOL analysis.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps The WebKitGTK Team/WebKitGTK (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| The WebKitGTK Team/WebKitGTKgeneric | >=0 <2.50.3 | 2.50.3 |
Published upstream
Dec 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.
Quoted source text, attributed separately from HOL analysis.