Is CVE-2009-1088 in the CISA KEV catalog?

No. CVE-2009-1088 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1088?

CVE-2009-1088 has a CVSS v2 base score of 9.0 (HIGH).

What is the EPSS score for CVE-2009-1088?

CVE-2009-1088 has an EPSS score of 11.97% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-1088

HIGHEPSS 96th pctl

9.0

CVSS v2

NVD

Description

Hannon Hill Cascade Server 5.7 and other versions allows remote authenticated users to execute arbitrary programs or Java code via a crafted XSLT stylesheet with "extension elements and extension functions" that trigger code execution by Xalan-Java, as demonstrated using xalan://java.lang.Runtime.

CWE-94Code Injection

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

11.97%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 2026-04-23.