CVE-2001-0905

Race condition in signal handling of procmail 3.20 and earlier, when running setuid, allows local users to cause a denial of service or gain root privileges by sending a signal while a signal handling routine is already running.

Published: 2001-10-18 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0905 is rated Low Risk (25.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2001-0905

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-03-07 1.03% 0.04% -0.99%
2 2022-02-04 — 1.03% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0905

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.2 2.0 MEDIUM
AV:L/AC:H/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 1.9 10.0 [email protected]

Weakness enumeration for CVE-2001-0905

OS Trackers for CVE-2001-0905

vendor priority summary link
redhat — — https://access.redhat.com/security/cve/CVE-2001-0905

Affected software / configurations for CVE-2001-0905

Vendor Product Version Raw CPE
procmail procmail <= 3.20 cpe:2.3:a:procmail:procmail:*:*:*:*:*:*:*:*

References for CVE-2001-0905

cvelogic Threat Intelligence