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Fencer Vulns
high 7.5

CVE-1999-0450 in the critical feed json

In IIS, an attacker could determine a real path using a request for a non-existent URL that would be interpreted by Perl (perl.exe).

published 1999-01-26 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0450

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.0%
EPSS 19.0% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

In IIS, an attacker could determine a real path using a request for a non-existent URL that would be interpreted by Perl (perl.exe).

Timeline

  1. First public exploit (EDB-19152)
  2. Published

Exploit prediction

19.03% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-19152 Microsoft IIS 5.0 - IISAPI Extension Enumerate Root Web Server Directory remote, 1999-01-26

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.