CVE-2010-1689

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.

Published: 2010-05-07 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-1689 is rated Moderate Risk (64.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 25.77%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.43% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-1689

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 20.34% 25.77% +5.43%
2 2025-12-27 25.77% 20.34% -5.43%
3 2025-10-28 — 25.77% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-1689

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2010-1689

Affected software / configurations for CVE-2010-1689

Vendor Product Version Raw CPE
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp1:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp2:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp3:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp1:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:sp1:*:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
microsoft windows_server_2008 — cpe:2.3:o:microsoft:windows_server_2008:-:sp1:*:*:*:*:*:*
microsoft windows_server_2008 — cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
microsoft windows_server_2008 r2 cpe:2.3:o:microsoft:windows_server_2008:r2:-:*:*:*:*:*:*
microsoft exchange_server 2003 cpe:2.3:a:microsoft:exchange_server:2003:-:*:*:*:*:*:*
microsoft exchange_server 2003 cpe:2.3:a:microsoft:exchange_server:2003:sp1:*:*:*:*:*:*
microsoft exchange_server 2003 cpe:2.3:a:microsoft:exchange_server:2003:sp2:*:*:*:*:*:*
microsoft exchange_server 2007 cpe:2.3:a:microsoft:exchange_server:2007:-:*:*:*:*:*:*
microsoft exchange_server 2007 cpe:2.3:a:microsoft:exchange_server:2007:sp1:*:*:*:*:*:*
microsoft exchange_server 2007 cpe:2.3:a:microsoft:exchange_server:2007:sp2:*:*:*:*:*:*
microsoft exchange_server 2010 cpe:2.3:a:microsoft:exchange_server:2010:-:*:*:*:*:*:*

References for CVE-2010-1689

cvelogic Threat Intelligence