Dashboard / CVE-2026-6653

CVE-2026-6653

HIGH
MEDIUM Priority: 0.02 BB Relevance: 74/100
Published: 2026-06-22 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: X
AT: None
VC: High
VI: Low
VA: Low

Description

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
xmlsoft libxml2 2.9.11 – 2.11.0

References & Advisories (2)

https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/2141260
Exploit Issue Tracking Third Party Advisory

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.36%
Raw Score 0.003550
Percentile 29.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00355
2026-10-28
0.00355

Intelligence Sources

nvd ref →

External Links