CVE-2002-1256

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 5%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EG Score
0.0(none)
EPSS
91.7%
KEV
Not listed

Published

December 23, 2002

Last Modified

June 16, 2026

References (8)

Data Freshness Timeline

(refreshed 3× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-08 15:09 UTCEPSS rescore
  4. 2026-07-06 02:19 UTCEPSS rescore
  5. 2026-07-04 06:26 UTCEPSS rescore
  6. 2026-07-02 14:00 UTCEPSS rescore
  7. 2026-06-28 14:02 UTCEPSS rescore
  8. 2026-06-28 04:52 UTCEPSS rescore
  9. 2026-06-27 03:04 UTCEPSS rescore
  10. 2026-06-23 21:29 UTCEPSS rescore
  11. 2026-06-22 14:22 UTCEPSS rescore
  12. 2026-06-21 14:52 UTCEPSS rescore
  13. 2026-06-21 01:56 UTCEPSS rescore
  14. 2026-06-19 19:22 UTCEPSS rescore
  15. 2026-06-19 19:22 UTCEPSS rescore
  16. 2026-06-18 17:49 UTCEPSS rescore
  17. 2026-06-18 17:49 UTCEPSS rescore
  18. 2026-06-17 17:49 UTCEPSS rescore
  19. 2026-06-17 17:49 UTCEPSS rescore
  20. 2026-06-16 17:49 UTCEPSS rescore
  21. 2026-06-16 17:49 UTCEPSS rescore
  22. 2026-06-15 17:43 UTCEPSS rescore
  23. 2026-06-14 23:13 UTCEPSS rescore
  24. 2026-06-14 23:13 UTCEPSS rescore
  25. 2026-06-13 22:56 UTCEPSS rescore
Show 32 more
  1. 2026-06-12 23:08 UTCEPSS rescore
  2. 2026-06-11 13:55 UTCEPSS rescore
  3. 2026-06-10 22:13 UTCEPSS rescore
  4. 2026-06-10 13:17 UTCEPSS rescore
  5. 2026-06-08 14:13 UTCEPSS rescore
  6. 2026-06-07 15:21 UTCEPSS rescore
  7. 2026-06-06 13:44 UTCEPSS rescore
  8. 2026-06-06 13:44 UTCEPSS rescore
  9. 2026-06-06 13:44 UTCEPSS rescore
  10. 2026-06-05 22:43 UTCEPSS rescore
  11. 2026-06-05 22:43 UTCEPSS rescore
  12. 2026-06-05 06:07 UTCEPSS rescore
  13. 2026-06-04 13:09 UTCEPSS rescore
  14. 2026-06-02 20:10 UTCEPSS rescore
  15. 2026-06-01 13:49 UTCEPSS rescore
  16. 2026-06-01 13:49 UTCEPSS rescore
  17. 2026-05-31 22:28 UTCEPSS rescore
  18. 2026-05-31 18:38 UTCEG score recompute
  19. 2026-05-31 18:38 UTCGHSA enrichment
  20. 2026-05-29 13:40 UTCEPSS rescore
  21. 2026-05-29 13:40 UTCEPSS rescore
  22. 2026-05-28 13:42 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-28 13:42 UTCEPSS rescore
  25. 2026-05-27 13:37 UTCEPSS rescore
  26. 2026-05-24 16:42 UTCEPSS rescore
  27. 2026-05-22 21:15 UTCEPSS rescore
  28. 2026-05-20 22:36 UTCEPSS rescore
  29. 2026-05-20 11:20 UTCEPSS rescore
  30. 2026-05-20 11:20 UTCEPSS rescore
  31. 2026-05-18 21:29 UTCEPSS rescore
  32. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2002-1256?
CVE-2002-1256 is a none vulnerability published on December 23, 2002. 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…
When was CVE-2002-1256 disclosed?
CVE-2002-1256 was first published in the National Vulnerability Database on December 23, 2002, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2002-1256 actively exploited?
CVE-2002-1256 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2002-1256?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1256, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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