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Fencer Vulns
medium 5.0

CVE-1999-0682 json

Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e.

published 1999-08-06 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0664

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
26.1%
EPSS 26.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e. spam) using encapsulated SMTP addresses, even if the anti-relaying features are enabled.

Patch / fix

Exploit prediction

26.10% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

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.