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Fencer Vulns
medium 4.6

CVE-2000-1147 json

Buffer overflow in IIS ISAPI .ASP parsing mechanism allows attackers to execute arbitrary commands via a long string to the "LANGUAGE" argu…

published 2000-12-19 25 y ago modified 2026-06-16 4 mo ago also EUVD-2000-1132

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.9%
EPSS 7.9% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

Buffer overflow in IIS ISAPI .ASP parsing mechanism allows attackers to execute arbitrary commands via a long string to the "LANGUAGE" argument in a script tag.

Patch / fix

Timeline

  1. First public exploit (EDB-20383)
  2. Published

Exploit prediction

7.88% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20383 Microsoft IIS 4.0 - ISAPI Buffer Overflow local, 2000-11-06
  • securityfocus.com http://www.securityfocus.com/archive/1/143070 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/1911 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/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.