An issue in NetSurf v.3.11 allows a remote attacker to execute arbitrary code via the dom_node_normalize function

published 2025-11-03 12 mo ago modified 2026-11-09 6 h ago also EUVD-2024-55062

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits: 0; none known

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-51317 updated 2026-05-06 cvss 6.5

netsurf: Use after free in NetSurf

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 12 mo ago (2025-11-03)

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Fysac/netsurf-disclosure/tree/main/CVE-2024-51317 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command

References

github.com /Fysac/netsurf-disclosure/tree/main/CVE-2024-51317
exploit, third-party-advisory
netsurf-browser.org /
product

Sources

CVE List CVE-2024-51317
NVD CVE-2024-51317

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary