CVE-1999-0955

Race condition in wu-ftpd and BSDI ftpd allows remote attackers to gain root access via the SITE EXEC command.

Published: 1997-09-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0955 is rated Moderate Risk (60.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.52%). EPSS rose +1.29% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-1999-0955

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 1.23% 2.52% +1.29%
2 2025-03-30 1.40% 1.23% -0.17%
3 2025-03-29 — 1.40% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0955

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.6 2.0 HIGH
AV:N/AC:H/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: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.
 4.9 10.0 [email protected]

Weakness enumeration for CVE-1999-0955

Affected software / configurations for CVE-1999-0955

Vendor Product Version Raw CPE
washington_university wu-ftpd 2.4.1 cpe:2.3:a:washington_university:wu-ftpd:2.4.1:*:*:*:*:*:*:*

References for CVE-1999-0955

cvelogic Threat Intelligence