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Fencer Vulns
high 7.5

CVE-2001-0815 in the critical feed json

Buffer overflow in PerlIS.dll in Activestate ActivePerl 5.6.1.629 and earlier allows remote attackers to execute arbitrary code via an HTTP…

published 2001-12-06 24 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0799

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.4%
EPSS 14.4% chance of exploitation in 30 days, percentile 96%
public exploits
3
Exploit-DB

Summary

Buffer overflow in PerlIS.dll in Activestate ActivePerl 5.6.1.629 and earlier allows remote attackers to execute arbitrary code via an HTTP request for a long filename that ends in a .pl extension.

Patch / fix

Timeline

  1. First public exploit (EDB-21154)
  2. Published

Exploit prediction

14.42% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-21154 ActivePerl 5.6.1 - 'perlIIS.dll' Remote Buffer Overflow (3) remote, 2001-11-15
  • EDB-21153 ActivePerl 5.6.1 - 'perlIIS.dll' Remote Buffer Overflow (2) remote, 2001-11-15
  • EDB-21152 ActivePerl 5.6.1 - 'perlIIS.dll' Remote Buffer Overflow (1) remote, 2001-11-15
  • securityfocus.com http://www.securityfocus.com/bid/3526 referenced PoC, tagged "exploit" by a source, unverified
  • bugs.activestate.com http://bugs.activestate.com/show_bug.cgi?id=18062 referenced PoC, tagged "exploit" by a source, unverified

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.