CVE-2001-0280

Exp

Buffer overflow in MERCUR SMTP server 3.30 allows remote attackers to execute arbitrary commands via a long EXPN command.

Published: 2001-05-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0280 is rated High Exploit Risk (93.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.97%, 96th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +8.24% 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-2001-0280

EDB-ID Source Kind Published Link
20647 exploit_db edb 2001-02-23 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0280

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 4.72% 12.97% +8.24%
2 2025-03-30 5.10% 4.72% -0.38%
3 2025-03-29 — 5.10% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0280

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-2001-0280

Affected software / configurations for CVE-2001-0280

Vendor Product Version Raw CPE
atrium_software mercur — cpe:2.3:a:atrium_software:mercur:*:*:*:*:*:*:*:*

References for CVE-2001-0280

cvelogic Threat Intelligence