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

CVE-2025-45663

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

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

MEDIUM · CVSS 6.5 EPSS 0.00079
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-244Improper Clearing of Heap Memory Before Release ('Heap Inspection')
▤

Affected Products & Versions

1
netsurf-browser netsurfall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · CVE-2025-45663github.com
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Nov 2025 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.netsurf-browser.org/Product
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