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Fencer Vulns
critical 10.0

CVE-2000-1074 json

csstart program in iCal 2.1 Patch 2 uses relative pathnames to install the libsocket and libnsl libraries, which could allow the icsuser ac…

published 2000-12-11 25 y ago modified 2026-09-23 46 d ago also EUVD-2000-1060

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
1
Exploit-DB

Summary

csstart program in iCal 2.1 Patch 2 uses relative pathnames to install the libsocket and libnsl libraries, which could allow the icsuser account to gain root privileges by creating a Trojan Horse library in the current or parent directory.

Patch / fix

Timeline

  1. First public exploit (EDB-20276)
  2. Published

Exploit prediction

4.11% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20276 Netscape iCal 2.1 Patch2 - iPlanet iCal 'csstart' Local Privilege Escalation local, 2000-10-10
  • atstake.com http://www.atstake.com/research/advisories/2000/a100900-1.txt referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/1769 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.