CVE-2025-9714
libxml2 - security update
Description
Uncontrolled recursion in XPath evaluation in libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions `xmlXPathRunEval`, `xmlXPathCtxtCompile`, and `xmlXPathEvalExpr` were resetting recursion depth to zero before making potentially recursive calls. When such functions were called recursively this could allow for uncontrolled recursion and lead to a stack overflow. These functions now preserve recursion depth across recursive calls, allowing recursion depth to be controlled.
How to fix CVE-2025-9714
To remediate CVE-2025-9714, upgrade the affected package to a fixed version below.
- —upgrade to 2.9.10+dfsg-6.7+deb11u9 or later
- —upgrade to 2.9.10+dfsg-6.7+deb11u9 or later
Is CVE-2025-9714 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.9.10+dfsg-6.7+deb11u9
- from 0, < 2.9.10+dfsg-6.7+deb11u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |