CVE-2026-18681

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-08-19. A secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.8Exploit: 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 Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity68% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or 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
0.3%
EPSS %ILE
24th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or 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 (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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 19, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

Security Bulletin: This Power System update is being released to address CVE-2026-18681

https://www.ibm.com/support/pages/node/7283899

Vendor Advisories for CVE-2026-18681(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 13× in last 7d / 64× 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 110 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18681?
CVE-2026-18681 is a medium vulnerability published on August 19, 2026. IBM Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute…
When was CVE-2026-18681 disclosed?
CVE-2026-18681 was first published on August 19, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18681 actively exploited?
CVE-2026-18681 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18681?
CVE-2026-18681 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18681?
No fix for CVE-2026-18681 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-2026-18681 are linked in the Vendor Advisories panel on this page.

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