How severe is CVE-2005-1256?

CVE-2005-1256 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2005-1256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1256?

CVE-2005-1256 primarily affects Ipswitch Imail. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1256?

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-2005-1256 published?

CVE-2005-1256 was published on 2005-05-25 and last updated on 2026-06-16.

CVE-2005-1256

CVE-2005-1256 is a critical-severity vulnerability in Ipswitch Imail with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 59% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 59% (99th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ipswitch Imail
Published: 2005-05-25
Last modified: 2026-06-16

Description

Stack-based buffer overflow in the IMAP daemon (IMAPD32.EXE) in IMail 8.13 in Ipswitch Collaboration Suite (ICS), and other versions before IMail Server 8.2 Hotfix 2, allows remote authenticated users to execute arbitrary code via a STATUS command with a long mailbox name.

Frequently asked questions

What is CVE-2005-1256?: Stack-based buffer overflow in the IMAP daemon (IMAPD32.EXE) in IMail 8.13 in Ipswitch Collaboration Suite (ICS), and other versions before IMail Server 8.2 Hotfix 2, allows remote authenticated users to execute arbitrary code via a STATUS command with a long mailbox name.
How severe is CVE-2005-1256?: CVE-2005-1256 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2005-1256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1256?: CVE-2005-1256 primarily affects Ipswitch Imail. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1256?: 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-2005-1256 published?: CVE-2005-1256 was published on 2005-05-25 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:ipswitch:imail:8.13:*:*:*:*:*:*:*
cpe:2.3:a:ipswitch:imail_server:*:*:*:*:*:*:*:*
cpe:2.3:a:ipswitch:ipswitch_collaboration_suite:*:*:*:*:*:*:*:*

More vulnerabilities in Ipswitch Imail

CVE-2005-1255 — Critical (CVSS 10.0): Multiple stack-based buffer overflows in the IMAP server in IMail 8.12 and 8.13 in Ipswitch Collaboration Suite (ICS),…
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CVE-2002-0777 — Critical (CVSS 10.0): Buffer overflow in the LDAP component of Ipswitch IMail 7.1 and earlier allows remote attackers to execute arbitrary…
CVE-1999-1046 — Critical (CVSS 10.0): Buffer overflow in IMonitor in IMail 5.0 allows remote attackers to cause a denial of service, and possibly execute…
CVE-2007-1637 — Critical (CVSS 9.3): Multiple buffer overflows in the IMAILAPILib ActiveX control (IMailAPI.dll) in Ipswitch IMail Server before 2006.2…
CVE-2007-2795 — Critical (CVSS 9.0): Multiple buffer overflows in Ipswitch IMail before 2006.21 allow remote attackers or authenticated users to execute…

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