CVE-2026-3856

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

IBM Db2 Recovery Expert for Linux, UNIX and Windows 5.5 IF 2 could allow an attacker to modify or corrupt data due to an insecure mechanism used for verifying the integrity of the data during transmission.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

March 17, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Security Bulletin: CVE-2026-3856 found in IBM Db2 Recovery Expert for Linux, UNIX and Windows v5.5

https://www.ibm.com/support/pages/node/7266272

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 25× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 19:30 UTCEPSS rescore
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 03:11 UTCEPSS rescore
  7. 2026-09-13 16:47 UTCEPSS rescore
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 09:37 UTCEPSS rescore
  10. 2026-09-10 09:34 UTCEPSS rescore
  11. 2026-09-08 22:00 UTCEPSS rescore
  12. 2026-09-07 16:01 UTCEPSS rescore
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 13:53 UTCEPSS rescore
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:46 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-21 23:49 UTCEPSS rescore
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 69 more
  1. 2026-08-19 17:03 UTCEPSS rescore
  2. 2026-08-18 13:48 UTCEPSS rescore
  3. 2026-08-17 13:47 UTCEPSS rescore
  4. 2026-08-16 14:56 UTCEPSS rescore
  5. 2026-08-16 11:19 UTCEG score recompute
  6. 2026-08-16 11:19 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-14 23:44 UTCGHSA enrichment
  10. 2026-08-14 19:57 UTCGHSA enrichment
  11. 2026-08-14 14:58 UTCGHSA enrichment
  12. 2026-08-14 11:12 UTCGHSA enrichment
  13. 2026-08-14 07:27 UTCEG score recompute
  14. 2026-08-14 07:27 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 01:59 UTCGHSA enrichment
  17. 2026-08-12 22:14 UTCEG score recompute
  18. 2026-08-12 22:14 UTCGHSA enrichment
  19. 2026-08-12 13:51 UTCEPSS rescore
  20. 2026-08-12 01:19 UTCGHSA enrichment
  21. 2026-08-11 21:32 UTCEG score recompute
  22. 2026-08-11 21:32 UTCGHSA enrichment
  23. 2026-08-11 13:43 UTCEPSS rescore
  24. 2026-08-11 08:37 UTCGHSA enrichment
  25. 2026-08-11 04:39 UTCEG score recompute
  26. 2026-08-11 04:39 UTCGHSA enrichment
  27. 2026-08-11 00:00 UTCEPSS rescore
  28. 2026-08-10 12:15 UTCGHSA enrichment
  29. 2026-08-10 08:14 UTCGHSA enrichment
  30. 2026-08-10 04:28 UTCGHSA enrichment
  31. 2026-08-10 00:41 UTCGHSA enrichment
  32. 2026-08-09 20:55 UTCGHSA enrichment
  33. 2026-08-09 17:09 UTCEG score recompute
  34. 2026-08-09 17:09 UTCGHSA enrichment
  35. 2026-08-09 13:46 UTCEPSS rescore
  36. 2026-08-09 13:23 UTCGHSA enrichment
  37. 2026-08-09 07:02 UTCEG score recompute
  38. 2026-08-09 07:02 UTCGHSA enrichment
  39. 2026-08-08 16:37 UTCEPSS rescore
  40. 2026-08-08 08:38 UTCGHSA enrichment
  41. 2026-08-08 04:53 UTCGHSA enrichment
  42. 2026-08-08 01:07 UTCGHSA enrichment
  43. 2026-08-07 21:22 UTCGHSA enrichment
  44. 2026-08-07 17:36 UTCEG score recompute
  45. 2026-08-07 17:36 UTCGHSA enrichment
  46. 2026-08-06 19:31 UTCEG score recompute
  47. 2026-08-06 19:31 UTCGHSA enrichment
  48. 2026-08-06 13:46 UTCEPSS rescore
  49. 2026-08-06 09:12 UTCGHSA enrichment
  50. 2026-08-06 05:26 UTCGHSA enrichment
  51. 2026-08-06 01:41 UTCEG score recompute
  52. 2026-08-06 01:41 UTCGHSA enrichment
  53. 2026-08-05 19:17 UTCEPSS rescore
  54. 2026-08-04 15:10 UTCEPSS rescore
  55. 2026-08-04 10:38 UTCEPSS rescore
  56. 2026-08-04 04:36 UTCGHSA enrichment
  57. 2026-08-04 00:51 UTCEG score recompute
  58. 2026-08-04 00:51 UTCGHSA enrichment
  59. 2026-08-03 10:36 UTCEPSS rescore
  60. 2026-08-03 01:14 UTCGHSA enrichment
  61. 2026-08-02 20:30 UTCGHSA enrichment
  62. 2026-08-02 16:45 UTCEG score recompute
  63. 2026-08-02 16:45 UTCGHSA enrichment
  64. 2026-08-02 02:27 UTCEPSS rescore
  65. 2026-08-01 04:16 UTCEPSS rescore
  66. 2026-07-30 16:28 UTCEPSS rescore
  67. 2026-07-30 01:30 UTCEPSS rescore
  68. 2026-07-27 14:14 UTCEG score recompute
  69. 2026-07-27 14:14 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-3856?
CVE-2026-3856 is a critical vulnerability published on March 17, 2026. IBM Db2 Recovery Expert for Linux, UNIX and Windows 5.5 IF 2 could allow an attacker to modify or corrupt data due to an insecure mechanism used for verifying the integrity of the data during transmission.
When was CVE-2026-3856 disclosed?
CVE-2026-3856 was first published in the National Vulnerability Database on March 17, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3856 actively exploited?
CVE-2026-3856 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.2% of all scored CVEs.
What is the CVSS score of CVE-2026-3856?
CVE-2026-3856 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-3856?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3856, 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.

Dependency Blast Radius

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