CVE-1999-0590

A system does not present an appropriate legal message or warning to a user who is accessing it.

Published: 2000-06-01 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-1999-0590 is rated High Risk (70.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 10.34%, 93th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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-1999-0590

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 2025-10-23 12.39% 10.34% -2.05%
2 2025-10-01 10.29% 12.39% +2.10%
3 2025-03-30 10.29%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0590

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-1999-0590

Affected software / configurations for CVE-1999-0590

Vendor Product Version Raw CPE
apple macos cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
linux linux_kernel 2.6.20.1 cpe:2.3:o:linux:linux_kernel:2.6.20.1:*:*:*:*:*:*:*
microsoft windows_2000 cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows_95 cpe:2.3:o:microsoft:windows_95:*:*:*:*:*:*:*:*
microsoft windows_98 cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:*
microsoft windows_nt 3.5.1 cpe:2.3:o:microsoft:windows_nt:3.5.1:*:*:*:*:*:*:*
microsoft windows_nt 3.5.1 cpe:2.3:o:microsoft:windows_nt:3.5.1:sp1:*:*:*:*:*:*
microsoft windows_nt 3.5.1 cpe:2.3:o:microsoft:windows_nt:3.5.1:sp2:*:*:*:*:*:*
microsoft windows_nt 3.5.1 cpe:2.3:o:microsoft:windows_nt:3.5.1:sp3:*:*:*:*:*:*
microsoft windows_nt 3.5.1 cpe:2.3:o:microsoft:windows_nt:3.5.1:sp5:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*

References for CVE-1999-0590

cvelogic Threat Intelligence