Dashboard / CVE-2026-123202

CVE-2026-123202

HIGH
MEDIUM Priority: 0.06 BB Relevance: 78/100
Published: 2026-11-05 Modified: 2026-11-12 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

libnxml before 0.18.6 contains a stack-based buffer overflow vulnerability in src/nxml_parser.c that allows remote attackers to write past a 1024-byte stack buffer via long XML names. Attackers can supply XML or RSS feeds with a 1022-character element, attribute, DOCTYPE or entity name ending in a multi-byte UTF-8 character to crash parsing applications.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
bakulf libnxml 0 < 0.18.6
bakulf libnxml 0 < 0.18.6

References & Advisories (4)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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

0.70%
Raw Score 0.007050
Percentile 53.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00705
2026-11-13
0.00705
2026-11-12
0.00705
2026-11-10
0.00705
2026-11-09
0.00705
2026-11-08
0.00705
2026-11-07
0.00705
2026-11-06
0.00705

Intelligence Sources

mitre ref →
nvd ref →

External Links