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Fencer Vulns
high 7.5

CVE-2000-1158 json

NAI Sniffer Agent uses base64 encoding for authentication, which allows attackers to sniff the network and easily decrypt usernames and pas…

published 2000-12-19 25 y ago modified 2026-06-16 4 mo ago also EUVD-2000-1143

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

NAI Sniffer Agent uses base64 encoding for authentication, which allows attackers to sniff the network and easily decrypt usernames and passwords.

Exploit prediction

1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2000-11/0038.html 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.