CVE-1999-0267

Exp

Buffer overflow in NCSA HTTP daemon v1.3 allows remote command execution.

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-1999-0267 is rated High Exploit Risk (82.3/100): CVSS High severity, with high exploitation likelihood (EPSS 10.24%, 95th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.98% 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-1999-0267

EDB-ID Source Kind Published Link
21049 exploit_db edb 1997-04-23 Exploit-DB ↗
21050 exploit_db edb 1995-02-17 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0267

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 6.26% 10.24% +3.98%
2 2025-07-19 6.57% 6.26% -0.31%
3 2025-03-30 — 6.57% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0267

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-1999-0267

OS Trackers for CVE-1999-0267

vendor priority summary link
alpine — CVE-1999-0267: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0267

Affected software / configurations for CVE-1999-0267

Vendor Product Version Raw CPE
ncsa ncsa_httpd 1.3 cpe:2.3:a:ncsa:ncsa_httpd:1.3:*:*:*:*:*:*:*

References for CVE-1999-0267

cvelogic Threat Intelligence