Is CVE-2006-1255 in the CISA KEV catalog?

No. CVE-2006-1255 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-1255?

CVE-2006-1255 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2006-1255?

CVE-2006-1255 has an EPSS score of 68.15% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2006-1255

HIGHEPSS 99th pctl

10.0

CVSS v2

NVD

Description

Stack-based buffer overflow in the IMAP service in Mercur Messaging 5.0 SP3 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long string to the (1) LOGIN or (2) SELECT command, a different set of attack vectors and possibly a different vulnerability than CVE-2003-1177.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

68.15%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% 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 2026-04-16.