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Fencer Vulns
critical 10.0

CVE-1999-1049 json

ARCserve NT agents use weak encryption (XOR) for passwords, which allows remote attackers to sniff the authentication request to port 6050…

published 1999-02-21 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1030

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

ARCserve NT agents use weak encryption (XOR) for passwords, which allows remote attackers to sniff the authentication request to port 6050 and decrypt the password.

Exploit prediction

1.75% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

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.