CVE-2006-1255

CVE-2006-1255 is a critical-severity vulnerability in Mercur Mercur Messaging with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 68% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

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.

Frequently asked questions

What is CVE-2006-1255?
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.
How severe is CVE-2006-1255?
CVE-2006-1255 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2006-1255 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 68% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1255?
CVE-2006-1255 affects Mercur Mercur Messaging. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-1255?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2006-1255 published?
CVE-2006-1255 was published on 2006-03-19 and last updated on 2026-06-16.

References

Affected products (1)

More vulnerabilities in Mercur Mercur Messaging

All CVEs affecting Mercur Mercur Messaging →