CVE-2025-45663

MEDIUM
2025-11-03 [email protected]
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:20 vuln.today
PoC Detected
Nov 05, 2025 - 18:19 vuln.today
Public exploit code
CVE Published
Nov 03, 2025 - 15:15 nvd
MEDIUM 6.5

Tags

Information Disclosure Netsurf

Description

An issue in NetSurf v3.11 causes the application to read uninitialized heap memory when creating a dom_event structure.

Analysis

An issue in NetSurf v3.11 causes the application to read uninitialized heap memory when creating a dom_event structure. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified under CWE-244. An issue in NetSurf v3.11 causes the application to read uninitialized heap memory when creating a dom_event structure. Affected products include: Netsurf-Browser Netsurf.

Affected Products

Netsurf-Browser Netsurf.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

53
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +32
POC: +20

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CVE-2025-45663 vulnerability details – vuln.today
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