How severe is CVE-2005-0100?

CVE-2005-0100 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-0100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-0100?

CVE-2005-0100 primarily affects Gnu Emacs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-0100?

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-2005-0100 published?

CVE-2005-0100 was published on 2005-02-07 and last updated on 2026-06-16.

CVE-2005-0100

CVE-2005-0100 is a high-severity vulnerability in Gnu Emacs 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: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gnu Emacs
Published: 2005-02-07
Last modified: 2026-06-16

Description

Format string vulnerability in the movemail utility in (1) Emacs 20.x, 21.3, and possibly other versions, and (2) XEmacs 21.4 and earlier, allows remote malicious POP3 servers to execute arbitrary code via crafted packets.

Frequently asked questions

What is CVE-2005-0100?: Format string vulnerability in the movemail utility in (1) Emacs 20.x, 21.3, and possibly other versions, and (2) XEmacs 21.4 and earlier, allows remote malicious POP3 servers to execute arbitrary code via crafted packets.
How severe is CVE-2005-0100?: CVE-2005-0100 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-0100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-0100?: CVE-2005-0100 primarily affects Gnu Emacs. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-0100?: 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-2005-0100 published?: CVE-2005-0100 was published on 2005-02-07 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:gnu:emacs:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:emacs:21.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:xemacs:*:*:*:*:*:*:*:*

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