How severe is CVE-2001-0889?

CVE-2001-0889 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0889 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0889?

CVE-2001-0889 primarily affects University Of Cambridge Exim. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0889?

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-2001-0889 published?

CVE-2001-0889 was published on 2001-12-19 and last updated on 2026-06-16.

CVE-2001-0889

CVE-2001-0889 is a high-severity vulnerability in University Of Cambridge Exim with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: University Of Cambridge Exim
Published: 2001-12-19
Last modified: 2026-06-16

Description

Exim 3.22 and earlier, in some configurations, does not properly verify the local part of an address when redirecting the address to a pipe, which could allow remote attackers to execute arbitrary commands via shell metacharacters.

Frequently asked questions

What is CVE-2001-0889?: Exim 3.22 and earlier, in some configurations, does not properly verify the local part of an address when redirecting the address to a pipe, which could allow remote attackers to execute arbitrary commands via shell metacharacters.
How severe is CVE-2001-0889?: CVE-2001-0889 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0889 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0889?: CVE-2001-0889 primarily affects University Of Cambridge Exim. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0889?: 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-2001-0889 published?: CVE-2001-0889 was published on 2001-12-19 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux:*:*:*:*:*:*:*:*

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