CVE-2026-13476

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. A secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.3Exploit: None knownExposed services: Not assessed

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

IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

August 18, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM Informix Wire Listener Vulnerable to Unauthenticated Remote Code Execution (CVE-2026-13476)

https://www.ibm.com/support/pages/node/7282827

Vendor Advisories for CVE-2026-13476(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 89× 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.

Showing the most recent 100 of 176 total refreshes for this CVE.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 22:27 UTCGHSA enrichment
  3. 2026-10-04 09:00 UTCGHSA enrichment
  4. 2026-10-03 19:55 UTCEG score recompute
  5. 2026-10-03 19:55 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-02 21:57 UTCEG score recompute
  8. 2026-10-02 21:57 UTCGHSA enrichment
  9. 2026-10-02 08:17 UTCEG score recompute
  10. 2026-10-02 08:17 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 10:57 UTCGHSA enrichment
  13. 2026-09-30 21:52 UTCEG score recompute
  14. 2026-09-30 21:52 UTCGHSA enrichment
  15. 2026-09-30 15:02 UTCEPSS rescore
  16. 2026-09-29 15:20 UTCEPSS rescore
  17. 2026-09-29 04:25 UTCEG score recompute
  18. 2026-09-29 04:25 UTCGHSA enrichment
  19. 2026-09-28 14:20 UTCEG score recompute
  20. 2026-09-28 14:20 UTCGHSA enrichment
  21. 2026-09-28 13:51 UTCEPSS rescore
  22. 2026-09-28 01:15 UTCEG score recompute
  23. 2026-09-28 01:15 UTCGHSA enrichment
  24. 2026-09-27 09:51 UTCEG score recompute
  25. 2026-09-27 09:51 UTCGHSA enrichment
Show 75 more
  1. 2026-09-26 15:58 UTCEPSS rescore
  2. 2026-09-25 03:39 UTCEG score recompute
  3. 2026-09-25 03:39 UTCGHSA enrichment
  4. 2026-09-24 12:39 UTCGHSA enrichment
  5. 2026-09-23 23:33 UTCEG score recompute
  6. 2026-09-23 23:33 UTCGHSA enrichment
  7. 2026-09-23 13:47 UTCEPSS rescore
  8. 2026-09-23 10:09 UTCGHSA enrichment
  9. 2026-09-22 21:04 UTCEG score recompute
  10. 2026-09-22 21:04 UTCGHSA enrichment
  11. 2026-09-22 03:17 UTCEG score recompute
  12. 2026-09-22 03:17 UTCGHSA enrichment
  13. 2026-09-21 14:11 UTCGHSA enrichment
  14. 2026-09-21 00:15 UTCEG score recompute
  15. 2026-09-21 00:15 UTCGHSA enrichment
  16. 2026-09-20 20:15 UTCEPSS rescore
  17. 2026-09-20 10:11 UTCGHSA enrichment
  18. 2026-09-19 19:43 UTCEG score recompute
  19. 2026-09-19 19:43 UTCGHSA enrichment
  20. 2026-09-19 06:07 UTCEG score recompute
  21. 2026-09-19 06:07 UTCGHSA enrichment
  22. 2026-09-18 19:27 UTCEPSS rescore
  23. 2026-09-18 16:56 UTCGHSA enrichment
  24. 2026-09-18 02:48 UTCEG score recompute
  25. 2026-09-18 02:48 UTCGHSA enrichment
  26. 2026-09-17 13:43 UTCGHSA enrichment
  27. 2026-09-17 00:16 UTCEG score recompute
  28. 2026-09-17 00:16 UTCGHSA enrichment
  29. 2026-09-16 05:14 UTCEPSS rescore
  30. 2026-09-16 02:14 UTCGHSA enrichment
  31. 2026-09-15 13:08 UTCEG score recompute
  32. 2026-09-15 13:08 UTCGHSA enrichment
  33. 2026-09-14 21:46 UTCGHSA enrichment
  34. 2026-09-14 04:16 UTCEG score recompute
  35. 2026-09-14 04:16 UTCGHSA enrichment
  36. 2026-09-13 16:46 UTCEPSS rescore
  37. 2026-09-13 15:11 UTCGHSA enrichment
  38. 2026-09-13 02:06 UTCEG score recompute
  39. 2026-09-13 02:06 UTCGHSA enrichment
  40. 2026-09-12 15:00 UTCEPSS rescore
  41. 2026-09-12 13:01 UTCGHSA enrichment
  42. 2026-09-11 23:56 UTCEG score recompute
  43. 2026-09-11 23:56 UTCGHSA enrichment
  44. 2026-09-11 14:52 UTCEPSS rescore
  45. 2026-09-11 09:36 UTCEPSS rescore
  46. 2026-09-11 09:34 UTCGHSA enrichment
  47. 2026-09-10 20:29 UTCEG score recompute
  48. 2026-09-10 20:29 UTCGHSA enrichment
  49. 2026-09-10 09:34 UTCEPSS rescore
  50. 2026-09-10 07:20 UTCGHSA enrichment
  51. 2026-09-09 18:15 UTCGHSA enrichment
  52. 2026-09-09 05:10 UTCEG score recompute
  53. 2026-09-09 05:10 UTCGHSA enrichment
  54. 2026-09-08 22:00 UTCEPSS rescore
  55. 2026-09-08 06:30 UTCGHSA enrichment
  56. 2026-09-07 16:40 UTCEG score recompute
  57. 2026-09-07 16:40 UTCGHSA enrichment
  58. 2026-09-07 16:01 UTCEPSS rescore
  59. 2026-09-06 19:58 UTCEG score recompute
  60. 2026-09-06 19:58 UTCGHSA enrichment
  61. 2026-09-06 13:47 UTCEPSS rescore
  62. 2026-09-06 06:39 UTCGHSA enrichment
  63. 2026-09-05 17:34 UTCEG score recompute
  64. 2026-09-05 17:34 UTCGHSA enrichment
  65. 2026-09-05 03:57 UTCGHSA enrichment
  66. 2026-09-04 14:52 UTCEG score recompute
  67. 2026-09-04 14:52 UTCGHSA enrichment
  68. 2026-09-04 05:06 UTCEPSS rescore
  69. 2026-09-04 01:45 UTCGHSA enrichment
  70. 2026-09-03 12:40 UTCGHSA enrichment
  71. 2026-09-02 23:25 UTCEG score recompute
  72. 2026-09-02 23:25 UTCGHSA enrichment
  73. 2026-09-02 14:11 UTCEPSS rescore
  74. 2026-09-02 00:43 UTCEG score recompute
  75. 2026-09-02 00:43 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13476?
CVE-2026-13476 is a high vulnerability published on August 12, 2026. IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.
When was CVE-2026-13476 disclosed?
CVE-2026-13476 was first published on August 12, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13476 actively exploited?
CVE-2026-13476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13476?
CVE-2026-13476 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-13476?
No fix for CVE-2026-13476 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-13476 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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