SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2001-0021

MailMan Webmail 3.0.25 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the alternate_template parameter.

EXPLOIT ✓HIGH 10.0EPSS 13.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.5%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

MailMan Webmail 3.0.25 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the alternate_template parameter.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
13.46% probability · 96th percentile
Public exploits
1 in Exploit-DB · verified · first 6 December 2000
CISA KEV
Not listed
Affected
endymion/mailman webmail
Source
cve@mitre.org
EPSS trend
0%8%15%26 October 2026: 13.46%26 October 202626 October 2026

EPSS 13.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-20469source ↗Endymion MailMan 3.0.x - Arbitrary Command Executionunix · Secure Reality Advisoriesremote6 December 2000yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.