CVE-2002-1256
The SMB signing capability in the Server Message Block (SMB) protocol in Microsoft Windows 2000...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2002-1256- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2002-1256- Updated
- 2026-11-02
EUVDEUVD-2002-1240 No score
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.
- Record
EUVD-2002-1240- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vh5c-q7x4-mjrx No score
The SMB signing capability in the Server Message Block (SMB) protocol in Microsoft Windows 2000...
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.
- Record
GHSA-vh5c-q7x4-mjrx- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-1256 is a medium vulnerability (CVSS 5.0) in Microsoft Windows 2000, published December 23, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.41%, the 92nd percentile. No source names a fixed version.
References
docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-070
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A277
securityfocus.com/bid/6367
exchange.xforce.ibmcloud.com/vulnerabilities/10843
nvd.nist.gov/vuln/detail/CVE-2002-1256
github.com/advisories/GHSA-vh5c-q7x4-mjrx