CVE-2026-15961

MEDIUMNVD 6.06.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.0 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.0Exploit: None knownExposed: 0

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

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 IBM PowerVM could allow a local attacker to obtain sensitive information or cause a denial of service due to improper control of format strings.

CVSS v3
6.0
EG Score
6.0(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity60% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

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-2026-15961

https://www.ibm.com/support/pages/node/7283228

Vendor Advisories for CVE-2026-15961(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 18× in last 7d / 78× 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. 2026-09-19 04:33 UTCEG score recompute
  2. 2026-09-19 04:32 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 06:36 UTCEG score recompute
  5. 2026-09-18 06:36 UTCGHSA enrichment
  6. 2026-09-17 08:41 UTCEG score recompute
  7. 2026-09-17 08:41 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 10:46 UTCEG score recompute
  10. 2026-09-16 10:46 UTCGHSA enrichment
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-15 12:46 UTCEG score recompute
  13. 2026-09-15 12:46 UTCGHSA enrichment
  14. 2026-09-14 14:36 UTCEG score recompute
  15. 2026-09-14 14:36 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-13 16:40 UTCGHSA enrichment
  18. 2026-09-12 18:45 UTCGHSA enrichment
  19. 2026-09-11 20:50 UTCEG score recompute
  20. 2026-09-11 20:50 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 09:36 UTCEPSS rescore
  23. 2026-09-10 22:50 UTCEG score recompute
  24. 2026-09-10 22:50 UTCGHSA enrichment
  25. 2026-09-10 09:34 UTCEPSS rescore
Show 65 more
  1. 2026-09-10 00:55 UTCGHSA enrichment
  2. 2026-09-09 02:39 UTCEG score recompute
  3. 2026-09-09 02:39 UTCGHSA enrichment
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 17:44 UTCEG score recompute
  6. 2026-09-07 17:44 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 19:49 UTCEG score recompute
  9. 2026-09-06 19:49 UTCGHSA enrichment
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-05 21:50 UTCEG score recompute
  12. 2026-09-05 21:50 UTCGHSA enrichment
  13. 2026-09-04 23:56 UTCEG score recompute
  14. 2026-09-04 23:56 UTCGHSA enrichment
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-04 01:26 UTCGHSA enrichment
  17. 2026-09-03 03:31 UTCEG score recompute
  18. 2026-09-03 03:31 UTCGHSA enrichment
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-02 05:24 UTCEG score recompute
  21. 2026-09-02 05:24 UTCGHSA enrichment
  22. 2026-09-01 13:53 UTCEPSS rescore
  23. 2026-09-01 07:23 UTCGHSA enrichment
  24. 2026-08-31 09:29 UTCEG score recompute
  25. 2026-08-31 09:29 UTCGHSA enrichment
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 11:27 UTCGHSA enrichment
  28. 2026-08-29 13:32 UTCEG score recompute
  29. 2026-08-29 13:32 UTCGHSA enrichment
  30. 2026-08-28 21:41 UTCEPSS rescore
  31. 2026-08-28 15:04 UTCGHSA enrichment
  32. 2026-08-27 16:37 UTCEG score recompute
  33. 2026-08-27 16:37 UTCGHSA enrichment
  34. 2026-08-27 14:25 UTCEPSS rescore
  35. 2026-08-26 18:41 UTCEG score recompute
  36. 2026-08-26 18:40 UTCGHSA enrichment
  37. 2026-08-26 14:46 UTCEPSS rescore
  38. 2026-08-25 20:44 UTCEG score recompute▲ 0.80
  39. 2026-08-25 20:44 UTCGHSA enrichment
  40. 2026-08-25 20:44 UTCNVD updateCVSS v3 → 6
  41. 2026-08-25 13:48 UTCEPSS rescore
  42. 2026-08-25 06:15 UTCEG score recompute
  43. 2026-08-25 06:15 UTCGHSA enrichment
  44. 2026-08-24 08:20 UTCGHSA enrichment
  45. 2026-08-23 10:22 UTCEG score recompute
  46. 2026-08-23 10:22 UTCGHSA enrichment
  47. 2026-08-23 00:19 UTCEPSS rescore
  48. 2026-08-22 12:28 UTCEG score recompute
  49. 2026-08-22 12:28 UTCGHSA enrichment
  50. 2026-08-21 23:49 UTCEPSS rescore
  51. 2026-08-21 14:33 UTCEG score recompute
  52. 2026-08-21 14:33 UTCGHSA enrichment
  53. 2026-08-20 22:55 UTCEPSS rescore
  54. 2026-08-20 16:38 UTCEG score recompute
  55. 2026-08-20 16:38 UTCGHSA enrichment
  56. 2026-08-20 15:45 UTCEG score recompute
  57. 2026-08-20 15:45 UTCGHSA enrichment
  58. 2026-08-20 13:28 UTCGHSA enrichment
  59. 2026-08-19 20:22 UTCEG score recompute
  60. 2026-08-19 20:22 UTCGHSA enrichment
  61. 2026-08-19 20:13 UTCEG score recompute
  62. 2026-08-19 20:13 UTCGHSA enrichment
  63. 2026-08-19 15:24 UTCEG score recompute
  64. 2026-08-19 14:38 UTCEG score recompute
  65. 2026-08-19 14:37 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15961?
CVE-2026-15961 is a medium vulnerability published on August 19, 2026. IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 IBM PowerVM could allow a local attacker to obtain sensitive information or cause a denial of service due to improper control of format strings.
When was CVE-2026-15961 disclosed?
CVE-2026-15961 was first published in the National Vulnerability Database 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-2026-15961 actively exploited?
CVE-2026-15961 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 99.1% of all scored CVEs.
What is the CVSS score of CVE-2026-15961?
CVE-2026-15961 has a CVSS v3 base score of 6.0 (NVD).
How do I remediate CVE-2026-15961?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15961, 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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