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Fencer Vulns
low 2.1

CVE-1999-0893 json

userOsa in SCO OpenServer allows local users to corrupt files via a symlink attack.

published 1999-10-11 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0874

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
1
Exploit-DB

Summary

userOsa in SCO OpenServer allows local users to corrupt files via a symlink attack.

Timeline

  1. First public exploit (EDB-19542)
  2. Published

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-19542 SCO Open Server 5.0.5 - 'userOsa' Symlink local, 1999-10-11

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:P/A:N

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.