The LDAP bind function in Exchange 5.5 has a buffer overflow that allows a remote attacker to conduct a denial of service or execute comman…

published 1998-12-01 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0385

cvss: 10.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 18.2%; EPSS 18.2% chance of exploitation in 30 days, percentile 97%
public exploits: 0; none known

The LDAP bind function in Exchange 5.5 has a buffer overflow that allows a remote attacker to conduct a denial of service or execute commands.

Patch / fix

links 1

docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-009 advisory

Exploit prediction

18.21% 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	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

Technology feeds

Microsoft Exchange rss critical rss

References

docs.microsoft.com /en-us/security-updates/securitybulletins/1999/ms99-009
vendor-advisory, patch

Sources

CVE List CVE-1999-0385
NVD CVE-1999-0385

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.

Summary