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Fencer Vulns
medium 5.0

CVE-1999-0945 json

Buffer overflow in Internet Mail Service (IMS) for Microsoft Exchange 5.5 and 5.0 allows remote attackers to conduct a denial of service vi…

published 2001-03-12 25 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0926

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.5%
EPSS 19.5% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Buffer overflow in Internet Mail Service (IMS) for Microsoft Exchange 5.5 and 5.0 allows remote attackers to conduct a denial of service via AUTH or AUTHINFO commands.

Patch / fix

Exploit prediction

19.52% chance of exploitation in the next 30 days, higher than 97% 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

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
Technology feeds

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.