CVE-2025-45663

MEDIUM
Published Nov 3, 2025 Modified Nov 5, 2025 CWE-244

Description

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

CVSS v3.1 Score

6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Weakness Type (CWE)

CWE-244 CWE-244

Affected Products

Vendor Product
netsurf-browser netsurf

References

Frequently Asked Questions

What is CVE-2025-45663? +
An issue in NetSurf v3.11 causes the application to read uninitialized heap memory when creating a dom_event structure. It has a CVSS v3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2025-45663? +
CVE-2025-45663 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-45663? +
CVE-2025-45663 affects products from netsurf-browser, specifically: netsurf. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-45663? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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