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Vulnerability record · CVE-2001-1319 · published 16 July 2001

CVE-2001-1319: Microsoft exchange server vulnerability

Microsoft · Exchange Server

Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.

5.0 CVSS 2.0 Medium EPSS 33% · top 1.7%
5.0CVSS 2.0 base score
33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://ciac.llnl.gov/ciac/bulletins/l-116.shtml PatchThird Party AdvisoryUS Government ResourceVendor Advisory
http://www.cert.org/advisories/CA-2001-18.html Third Party AdvisoryUS Government Resource
http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ Third Party Advisory
http://www.kb.cert.org/vuls/id/763400 Third Party AdvisoryUS Government Resource
http://www.kb.cert.org/vuls/id/CFCN-4YAQC7 Third Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/3045 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/6899 Third Party AdvisoryVDB Entry
http://ciac.llnl.gov/ciac/bulletins/l-116.shtml PatchThird Party AdvisoryUS Government ResourceVendor Advisory
http://www.cert.org/advisories/CA-2001-18.html Third Party AdvisoryUS Government Resource
http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ Third Party Advisory
http://www.kb.cert.org/vuls/id/763400 Third Party AdvisoryUS Government Resource
http://www.kb.cert.org/vuls/id/CFCN-4YAQC7 Third Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/3045 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/6899 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2001-1319), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.