How severe is CVE-2007-5466?

CVE-2007-5466 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2007-5466 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-5466?

CVE-2007-5466 affects Extremail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-5466?

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-2007-5466 published?

CVE-2007-5466 was published on 2007-10-15 and last updated on 2026-06-16.

CVE-2007-5466

CVE-2007-5466 is a critical-severity vulnerability in Extremail with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Extremail
Published: 2007-10-15
Last modified: 2026-06-16

Description

Multiple buffer overflows in eXtremail 2.1.1 and earlier allow remote attackers to (1) have an unknown impact by sending multiple long strings to the IMAP port (143/tcp); (2) execute arbitrary code via a long string in an IMAP AUTHENTICATE PLAIN action, involving the ifParseAuthPlain function; (3) execute arbitrary code via a long LOGIN command to the admin interface port (4501/tcp); or (4) execute arbitrary code via a long string in an IMAP AUTHENTICATE LOGIN (aka CRAM-MD5 authentication) action, involving the ifProcImapAuth1 function.

Frequently asked questions

What is CVE-2007-5466?: Multiple buffer overflows in eXtremail 2.1.1 and earlier allow remote attackers to (1) have an unknown impact by sending multiple long strings to the IMAP port (143/tcp); (2) execute arbitrary code via a long string in an IMAP AUTHENTICATE PLAIN action, involving the ifParseAuthPlain function; (3) execute arbitrary code via a long LOGIN command to the admin interface port (4501/tcp); or (4) execute arbitrary code via a long string in an IMAP AUTHENTICATE LOGIN (aka CRAM-MD5 authentication) action, involving the ifProcImapAuth1 function.
How severe is CVE-2007-5466?: CVE-2007-5466 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2007-5466 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-5466?: CVE-2007-5466 affects Extremail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-5466?: 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-2007-5466 published?: CVE-2007-5466 was published on 2007-10-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:extremail:extremail:*:*:*:*:*:*:*:*

More vulnerabilities in Extremail

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CVE-2006-6926 — Critical (CVSS 10.0): Buffer overflow in eXtremail 2.1 has unknown impact and attack vectors, as demonstrated by VulnDisco Pack. NOTE: The…
CVE-2004-0332 — Critical (CVSS 10.0): Extremail 1.5.9 does not check passwords correctly when they are all digits or begin with a digit, which allows remote…
CVE-2001-1078 — Critical (CVSS 10.0): Format string vulnerability in flog function of eXtremail 1.1.9 and earlier allows remote attackers to gain root…

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