CVE-2026-86142
CVSS Score
6.9
EPSS Score
0.0%
EPSS Percentile
0th
In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.
| CWE | CWE-122 |
| Vendor | xmlsoft |
| Product | libxml2 |
| Published | Sep 5, 2026 |
| Last Updated | Sep 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for xmlsoft libxml2
Be the first to know when new medium vulnerabilities affecting xmlsoft libxml2 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
Affected Versions
xmlsoft / libxml2
0 < 2.15.4