CVE-2004-0777

CVE-2004-0777 is a high-severity vulnerability in Inter7 Courier-imap with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-134.

Key facts

Description

Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.

Frequently asked questions

What is CVE-2004-0777?
Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.
How severe is CVE-2004-0777?
CVE-2004-0777 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-0777 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0777?
CVE-2004-0777 primarily affects Inter7 Courier-imap. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0777?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2004-0777 published?
CVE-2004-0777 was published on 2004-10-20 and last updated on 2026-06-16.

References

Affected products (8)

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