CVE-1999-0686

Denial of service in Netscape Enterprise Server (NES) in HP Virtual Vault (VVOS) via a long URL.

Published: 1999-05-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0686 is rated Moderate Risk (47.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.79%). EPSS rose +1.08% 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-1999-0686

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 0.71% 1.79% +1.08%
2 2025-03-30 0.79% 0.71% -0.08%
3 2025-03-29 — 0.79% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0686

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-1999-0686

Affected software / configurations for CVE-1999-0686

Vendor Product Version Raw CPE
netscape enterprise_server — cpe:2.3:a:netscape:enterprise_server:*:*:*:*:*:*:*:*
hp hp-ux 10.24 cpe:2.3:o:hp:hp-ux:10.24:*:*:*:*:*:*:*

References for CVE-1999-0686

cvelogic Threat Intelligence