How severe is CVE-2001-1078?

CVE-2001-1078 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2001-1078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1078?

CVE-2001-1078 primarily affects Extremail. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-1078?

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-2001-1078 published?

CVE-2001-1078 was published on 2001-06-21 and last updated on 2026-06-16.

CVE-2001-1078

CVE-2001-1078 is a critical-severity vulnerability in Extremail with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Extremail
Published: 2001-06-21
Last modified: 2026-06-16

Description

Format string vulnerability in flog function of eXtremail 1.1.9 and earlier allows remote attackers to gain root privileges via format specifiers in the SMTP commands (1) HELO, (2) EHLO, (3) MAIL FROM, or (4) RCPT TO, and the POP3 commands (5) USER and (6) other commands that can be executed after POP3 authentication.

Frequently asked questions

What is CVE-2001-1078?: Format string vulnerability in flog function of eXtremail 1.1.9 and earlier allows remote attackers to gain root privileges via format specifiers in the SMTP commands (1) HELO, (2) EHLO, (3) MAIL FROM, or (4) RCPT TO, and the POP3 commands (5) USER and (6) other commands that can be executed after POP3 authentication.
How severe is CVE-2001-1078?: CVE-2001-1078 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2001-1078 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1078?: CVE-2001-1078 primarily affects Extremail. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1078?: 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-2001-1078 published?: CVE-2001-1078 was published on 2001-06-21 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:extremail:extremail:1.0:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.8:*:*:*:*:*:*:*
cpe:2.3:a:extremail:extremail:1.1.9:*:*:*:*:*:*:*

More vulnerabilities in Extremail

CVE-2007-5466 — Critical (CVSS 10.0): Multiple buffer overflows in eXtremail 2.1.1 and earlier allow remote attackers to (1) have an unknown impact by…
CVE-2007-5467 — Critical (CVSS 10.0): Integer overflow in eXtremail 2.1.1 and earlier allows remote attackers to cause a denial of service, and possibly…
CVE-2007-2188 — Critical (CVSS 10.0): eXtremail 2.1.1 and earlier does not verify the ID field (aka transaction id) in DNS responses, which makes it easier…
CVE-2007-2187 — Critical (CVSS 10.0): Stack-based buffer overflow in eXtremail 2.1.1 and earlier allows remote attackers to execute arbitrary code via a long…
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…

All CVEs affecting Extremail →