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Vulnerability record · CVE-2010-1689 · published 7 May 2010

CVE-2010-1689: Microsoft windows 2000 vulnerability

Microsoft · Windows 2000

The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 uses predictable transaction IDs that are formed by incrementing a previous ID by 1, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.

6.4 CVSS 2.0 Medium EPSS 6.6% · top 6.4% CWE-310 · CWE-310
6.4CVSS 2.0 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 uses predictable transaction IDs that are formed by incrementing a previous ID by 1, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.

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

Affected products

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

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2010-05/0058.html Broken Link
http://securitytracker.com/id?1023939 Third Party AdvisoryVDB Entry
http://www.coresecurity.com/content/CORE-2010-0424-windows-smtp-dns-query-id-bugs Third Party Advisory
http://www.securityfocus.com/bid/39908 Third Party AdvisoryVDB Entry
http://archives.neohapsis.com/archives/fulldisclosure/2010-05/0058.html Broken Link
http://securitytracker.com/id?1023939 Third Party AdvisoryVDB Entry
http://www.coresecurity.com/content/CORE-2010-0424-windows-smtp-dns-query-id-bugs Third Party Advisory
http://www.securityfocus.com/bid/39908 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-2010-1689), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.