Heap Memory Reading Issue in NetSurf Browser by NetSurf Developers
CVE-2025-45663

6.5MEDIUM

Key Information:

Vendor

NetSurf Developers

Status
NetSurf
Vendor
CVE Published:
3 November 2025

What is CVE-2025-45663?

An issue in NetSurf v3.11 triggers the application to read uninitialized heap memory while creating a dom_event structure. This anomaly can potentially lead to the exposure of sensitive information, posing risks for users' privacy and security. It is crucial for users of affected versions to apply patches or update their installations to mitigate potential vulnerabilities.

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References

https://github.com/Fysac/netsurf-disclosure/tree/main/CVE...
https://www.netsurf-browser.org/

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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