CVE-2002-1256
CVE-2002-1256 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 5% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows 2000
- Published:
- Last modified:
Description
The SMB signing capability in the Server Message Block (SMB) protocol in Microsoft Windows 2000 and Windows XP allows attackers to disable the digital signing settings in an SMB session to force the data to be sent unsigned, then inject data into the session without detection, e.g. by modifying group policy information sent from a domain controller.
Frequently asked questions
- What is CVE-2002-1256?
- The SMB signing capability in the Server Message Block (SMB) protocol in Microsoft Windows 2000 and Windows XP allows attackers to disable the digital signing settings in an SMB session to force the data to be sent unsigned, then inject data into the session without detection, e.g. by modifying group policy information sent from a domain controller.
- How severe is CVE-2002-1256?
- CVE-2002-1256 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2002-1256 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2002-1256?
- CVE-2002-1256 primarily affects Microsoft Windows 2000. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2002-1256?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2002-1256 published?
- CVE-2002-1256 was published on 2002-12-23 and last updated on 2026-06-16.
References
- http://www.securityfocus.com/bid/6367
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-070
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10843
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A277
Affected products (11)
- cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000_terminal_services:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:*
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