CVE-1999-0191

Exp

IIS newdsn.exe CGI script allows remote users to overwrite files.

Published: 1997-09-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-1999-0191 is rated High Exploit Risk (70.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 53.30%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: 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-1999-0191

EDB-ID Source Kind Published Link
20309 exploit_db edb 1997-08-25 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0191

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 61.95% 53.30% -8.65%
2 2025-03-30 29.77% 61.95% +32.18%
3 2025-03-29 29.77%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0191

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N 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:N)
No availability impact.
10.0 4.9 [email protected]

Weakness enumeration for CVE-1999-0191

OS Trackers for CVE-1999-0191

vendor priority summary link
alpine CVE-1999-0191: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0191

Affected software / configurations for CVE-1999-0191

Vendor Product Version Raw CPE
microsoft internet_information_server 3.0 cpe:2.3:a:microsoft:internet_information_server:3.0:*:*:*:*:*:*:*

References for CVE-1999-0191

cvelogic Threat Intelligence