Is CVE-2011-1944 in the CISA KEV catalog?

No. CVE-2011-1944 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1944?

CVE-2011-1944 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2011-1944?

CVE-2011-1944 has an EPSS score of 13.73% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-1944

HIGHEPSS 96th pctl

9.3

CVSS v2

NVD

Description

Integer overflow in xpath.c in libxml2 2.6.x through 2.6.32 and 2.7.x through 2.7.8, and libxml 1.8.16 and earlier, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted XML file that triggers a heap-based buffer overflow when adding a new namespace node, related to handling of XPath expressions.

CWE-189

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

13.73%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.