Is CVE-2008-2255 in the CISA KEV catalog?

No. CVE-2008-2255 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-2255?

CVE-2008-2255 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2008-2255?

CVE-2008-2255 has an EPSS score of 29.06% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2008-2255

HIGHEPSS 98th pctl

9.3

CVSS v2

NVD

Description

Microsoft Internet Explorer 5.01, 6, and 7 accesses uninitialized memory, which allows remote attackers to cause a denial of service (crash) and execute arbitrary code via unknown vectors, a different vulnerability than CVE-2008-2254, aka "HTML Object Memory Corruption Vulnerability."

CWE-399

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

29.06%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.