CVE-2024-40896

moderate-risk
Published 2024-12-23

In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE attacks possible.

Do I need to act?

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0.55% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Vendors

48
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 2/34 · Minimal
Exposure 15/34 · Moderate