CVE-2000-0091

Exp

Buffer overflow in vchkpw/vpopmail POP authentication package allows remote attackers to gain root privileges via a long username or password.

Published: 2000-01-21 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0091 is rated High Exploit Risk (93.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.87%, 96th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +10.38% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2000-0091

EDB-ID Source Kind Published Link
19727 exploit_db edb 2000-01-21 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2000-0091

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 2026-06-15 2.49% 12.87% +10.38%
2 2025-03-30 6.59% 2.49% -4.09%
3 2025-03-29 — 6.59% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0091

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2000-0091

Affected software / configurations for CVE-2000-0091

Vendor Product Version Raw CPE
inter7 vpopmail vchkpw_3.4.1 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.1:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.2 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.2:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.3 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.3:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.4 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.4:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.5 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.5:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.6 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.6:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.7 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.7:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.8 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.8:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.9 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.9:*:*:*:*:*:*:*
inter7 vpopmail vchkpw_3.4.11 cpe:2.3:a:inter7:vpopmail:vchkpw_3.4.11:*:*:*:*:*:*:*

References for CVE-2000-0091

cvelogic Threat Intelligence