CVE-2008-3963

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 6%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

MySQL 5.0 before 5.0.66, 5.1 before 5.1.26, and 6.0 before 6.0.6 does not properly handle a b'' (b single-quote single-quote) token, aka an empty bit-string literal, which allows remote attackers to cause a denial of service (daemon crash) by using this token in a SQL statement.

CVSS v3
—
EG Score
0.0(none)
EPSS
92.9%
KEV
Not listed

Published

September 11, 2008

Last Modified

April 23, 2026

References (46)

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumysql-server-5.0 (5.0.51a-3ubuntu5.4) @ hardy2026-05-30ubuntu
ubuntumysql-server-5.1 (5.1.61-0ubuntu0.11.10.1) @ oneiric2026-05-30ubuntu
redhatmysql-0:5.0.77-3.el52009-09-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 43× 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. 2026-07-09 19:04 UTCEPSS rescore
  4. 2026-07-08 15:09 UTCEPSS rescore
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  10. 2026-07-04 06:27 UTCEPSS rescore
  11. 2026-07-02 14:00 UTCEPSS rescore
  12. 2026-07-01 15:02 UTCEPSS rescore
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  14. 2026-06-30 23:19 UTCEPSS rescore
  15. 2026-06-29 14:02 UTCEPSS rescore
  16. 2026-06-29 14:02 UTCEPSS rescore
  17. 2026-06-28 14:03 UTCEPSS rescore
  18. 2026-06-28 04:52 UTCEPSS rescore
  19. 2026-06-27 03:04 UTCEPSS rescore
  20. 2026-06-25 13:46 UTCEPSS rescore
  21. 2026-06-25 13:46 UTCEPSS rescore
  22. 2026-06-24 14:02 UTCEPSS rescore
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  24. 2026-06-23 21:29 UTCEPSS rescore
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  1. 2026-06-22 14:22 UTCEPSS rescore
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  3. 2026-06-21 14:53 UTCEPSS rescore
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  5. 2026-06-21 01:56 UTCEPSS rescore
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  7. 2026-06-19 19:22 UTCEPSS rescore
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  9. 2026-06-18 17:49 UTCEPSS rescore
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  11. 2026-06-17 17:49 UTCEPSS rescore
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  15. 2026-06-15 17:44 UTCEPSS rescore
  16. 2026-06-13 22:57 UTCEPSS rescore
  17. 2026-06-12 23:08 UTCEPSS rescore
  18. 2026-06-12 23:08 UTCEPSS rescore
  19. 2026-06-11 13:56 UTCEPSS rescore
  20. 2026-06-10 22:14 UTCEPSS rescore
  21. 2026-06-10 13:17 UTCEPSS rescore
  22. 2026-06-08 14:13 UTCEPSS rescore
  23. 2026-06-07 15:22 UTCEPSS rescore
  24. 2026-06-06 13:44 UTCEPSS rescore
  25. 2026-06-06 13:44 UTCEPSS rescore
  26. 2026-06-05 22:44 UTCEPSS rescore
  27. 2026-06-05 22:44 UTCEPSS rescore
  28. 2026-06-05 06:07 UTCEPSS rescore
  29. 2026-06-04 13:09 UTCEPSS rescore
  30. 2026-06-04 13:09 UTCEPSS rescore
  31. 2026-06-02 20:10 UTCEPSS rescore
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  33. 2026-06-01 13:49 UTCEPSS rescore
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  36. 2026-05-31 22:28 UTCEPSS rescore
  37. 2026-05-31 22:28 UTCEPSS rescore
  38. 2026-05-31 00:13 UTCEPSS rescore
  39. 2026-05-31 00:13 UTCEPSS rescore
  40. 2026-05-30 20:23 UTCEG score recompute
  41. 2026-05-30 20:23 UTCVendor advisory
  42. 2026-05-30 20:23 UTCGHSA enrichment
  43. 2026-05-29 13:40 UTCEPSS rescore
  44. 2026-05-28 13:42 UTCEPSS rescore
  45. 2026-05-28 13:42 UTCEPSS rescore
  46. 2026-05-28 13:42 UTCEPSS rescore
  47. 2026-05-27 13:38 UTCEPSS rescore
  48. 2026-05-27 13:37 UTCEPSS rescore
  49. 2026-05-26 13:41 UTCEPSS rescore
  50. 2026-05-26 13:41 UTCEPSS rescore
  51. 2026-05-26 07:16 UTCEPSS rescore
  52. 2026-05-26 07:16 UTCEPSS rescore
  53. 2026-05-24 16:43 UTCEPSS rescore
  54. 2026-05-22 21:15 UTCEPSS rescore
  55. 2026-05-22 21:15 UTCEPSS rescore
  56. 2026-05-20 22:37 UTCEPSS rescore
  57. 2026-05-20 22:36 UTCEPSS rescore
  58. 2026-05-20 11:20 UTCEPSS rescore
  59. 2026-05-20 11:20 UTCEPSS rescore
  60. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-32348✓ verified
    First seen Mar 28, 2008

    MySQL 6.0.4 - Empty Binary String Literal Remote Denial of Service

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2008-3963?
CVE-2008-3963 is a none vulnerability published on September 11, 2008. MySQL 5.0 before 5.0.66, 5.1 before 5.1.26, and 6.0 before 6.0.6 does not properly handle a b'' (b single-quote single-quote) token, aka an empty bit-string literal, which allows remote attackers to cause a denial of service (daemon crash) by using this token in a SQL statement.
When was CVE-2008-3963 disclosed?
CVE-2008-3963 was first published in the National Vulnerability Database on September 11, 2008, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2008-3963 actively exploited?
CVE-2008-3963 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2008-3963?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2008-3963, 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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