Is CVE-2009-1917 in the CISA KEV catalog?

No. CVE-2009-1917 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1917?

CVE-2009-1917 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2009-1917?

CVE-2009-1917 has an EPSS score of 27.47% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-1917

HIGHEPSS 98th pctl

9.3

CVSS v2

NVD

Description

Microsoft Internet Explorer 6 SP1; Internet Explorer 6 for Windows XP SP2 and SP3 and Server 2003 SP2; and Internet Explorer 7 and 8 for Windows XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 do not properly handle attempts to access deleted objects in memory, which allows remote attackers to execute arbitrary code via a crafted HTML document that triggers memory corruption, aka "Memory Corruption Vulnerability."

CWE-399

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

27.47%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% 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.