CVE-2026-85509

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-04. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

FreeIPMI before 1.6.19 has a stack-based buffer overflow in _read_fru_data in libfreeipmi/fru/ipmi-fru.c when a BMC returns more bytes than requested.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (3)

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

oss-security - Fwd: [Freeipmi-announce] FreeIPMI 1.6.19 Released

https://www.openwall.com/lists/oss-security/2026/08/28/5
generic

FreeIPMI - Home

https://www.gnu.org/software/freeipmi/
generic
https://ftp.gnu.org/gnu/freeipmi/freeipmi-1.6.19.tar.gz

Vendor Advisories for CVE-2026-85509(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freeipmi1.6.10-1 ... 1.6.18-1 (13 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
freeipmi1.6.15-1, 1.6.15-2, 1.6.16-1, 1.6.17-1, 1.6.18-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
freeipmi1.6.15-1, 1.6.15-2, 1.6.16-1, 1.6.17-1, 1.6.18-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 89× in last 7d / 176× 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. 2026-09-19 11:10 UTCVendor advisory
  2. 2026-09-19 11:10 UTCGHSA enrichment
  3. 2026-09-19 06:53 UTCVendor advisory
  4. 2026-09-19 06:53 UTCGHSA enrichment
  5. 2026-09-19 02:34 UTCVendor advisory
  6. 2026-09-19 02:34 UTCGHSA enrichment
  7. 2026-09-18 22:15 UTCEG score recompute
  8. 2026-09-18 22:15 UTCVendor advisory
  9. 2026-09-18 22:15 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 17:57 UTCVendor advisory
  12. 2026-09-18 17:57 UTCGHSA enrichment
  13. 2026-09-18 13:39 UTCVendor advisory
  14. 2026-09-18 13:39 UTCGHSA enrichment
  15. 2026-09-18 09:20 UTCVendor advisory
  16. 2026-09-18 09:20 UTCGHSA enrichment
  17. 2026-09-18 05:02 UTCVendor advisory
  18. 2026-09-18 05:02 UTCGHSA enrichment
  19. 2026-09-18 00:44 UTCVendor advisory
  20. 2026-09-18 00:44 UTCGHSA enrichment
  21. 2026-09-17 20:26 UTCEG score recompute
  22. 2026-09-17 20:26 UTCVendor advisory
  23. 2026-09-17 20:26 UTCGHSA enrichment
  24. 2026-09-17 19:32 UTCEPSS rescore
  25. 2026-09-17 13:31 UTCVendor advisory
Show 75 more
  1. 2026-09-17 13:31 UTCGHSA enrichment
  2. 2026-09-17 09:10 UTCVendor advisory
  3. 2026-09-17 09:10 UTCGHSA enrichment
  4. 2026-09-17 04:52 UTCVendor advisory
  5. 2026-09-17 04:52 UTCGHSA enrichment
  6. 2026-09-17 00:34 UTCVendor advisory
  7. 2026-09-17 00:34 UTCGHSA enrichment
  8. 2026-09-16 20:16 UTCVendor advisory
  9. 2026-09-16 20:15 UTCGHSA enrichment
  10. 2026-09-16 15:57 UTCEG score recompute
  11. 2026-09-16 15:57 UTCVendor advisory
  12. 2026-09-16 15:57 UTCGHSA enrichment
  13. 2026-09-16 14:09 UTCEPSS rescore
  14. 2026-09-16 11:39 UTCVendor advisory
  15. 2026-09-16 11:39 UTCGHSA enrichment
  16. 2026-09-16 07:15 UTCEG score recompute
  17. 2026-09-16 07:15 UTCVendor advisory
  18. 2026-09-16 07:15 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-16 02:56 UTCVendor advisory
  21. 2026-09-16 02:56 UTCGHSA enrichment
  22. 2026-09-15 22:38 UTCVendor advisory
  23. 2026-09-15 22:38 UTCGHSA enrichment
  24. 2026-09-15 18:19 UTCVendor advisory
  25. 2026-09-15 18:19 UTCGHSA enrichment
  26. 2026-09-15 13:26 UTCVendor advisory
  27. 2026-09-15 13:26 UTCGHSA enrichment
  28. 2026-09-15 09:08 UTCVendor advisory
  29. 2026-09-15 09:08 UTCGHSA enrichment
  30. 2026-09-15 04:50 UTCEG score recompute
  31. 2026-09-15 04:50 UTCVendor advisory
  32. 2026-09-15 04:49 UTCGHSA enrichment
  33. 2026-09-15 03:12 UTCEPSS rescore
  34. 2026-09-15 03:12 UTCEPSS rescore
  35. 2026-09-15 00:22 UTCVendor advisory
  36. 2026-09-15 00:22 UTCGHSA enrichment
  37. 2026-09-14 20:04 UTCVendor advisory
  38. 2026-09-14 20:04 UTCGHSA enrichment
  39. 2026-09-14 15:46 UTCVendor advisory
  40. 2026-09-14 15:46 UTCGHSA enrichment
  41. 2026-09-14 11:28 UTCVendor advisory
  42. 2026-09-14 11:28 UTCGHSA enrichment
  43. 2026-09-14 07:10 UTCVendor advisory
  44. 2026-09-14 07:10 UTCGHSA enrichment
  45. 2026-09-14 02:52 UTCVendor advisory
  46. 2026-09-14 02:52 UTCGHSA enrichment
  47. 2026-09-13 22:34 UTCVendor advisory
  48. 2026-09-13 22:34 UTCGHSA enrichment
  49. 2026-09-13 18:16 UTCEG score recompute
  50. 2026-09-13 18:16 UTCVendor advisory
  51. 2026-09-13 18:16 UTCGHSA enrichment
  52. 2026-09-13 13:58 UTCVendor advisory
  53. 2026-09-13 13:58 UTCGHSA enrichment
  54. 2026-09-13 09:40 UTCVendor advisory
  55. 2026-09-13 09:40 UTCGHSA enrichment
  56. 2026-09-13 05:22 UTCVendor advisory
  57. 2026-09-13 05:22 UTCGHSA enrichment
  58. 2026-09-13 01:04 UTCVendor advisory
  59. 2026-09-13 01:04 UTCGHSA enrichment
  60. 2026-09-12 20:46 UTCVendor advisory
  61. 2026-09-12 20:46 UTCGHSA enrichment
  62. 2026-09-12 16:28 UTCEG score recompute
  63. 2026-09-12 16:28 UTCVendor advisory
  64. 2026-09-12 16:28 UTCGHSA enrichment
  65. 2026-09-12 12:10 UTCVendor advisory
  66. 2026-09-12 12:10 UTCGHSA enrichment
  67. 2026-09-12 07:51 UTCVendor advisory
  68. 2026-09-12 07:51 UTCGHSA enrichment
  69. 2026-09-12 03:34 UTCVendor advisory
  70. 2026-09-12 03:34 UTCGHSA enrichment
  71. 2026-09-11 23:15 UTCVendor advisory
  72. 2026-09-11 23:15 UTCGHSA enrichment
  73. 2026-09-11 18:29 UTCEG score recompute
  74. 2026-09-11 18:29 UTCVendor advisory
  75. 2026-09-11 18:29 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-85509?
CVE-2026-85509 is a critical vulnerability published on September 4, 2026. FreeIPMI before 1.6.19 has a stack-based buffer overflow in readfru_data in libfreeipmi/fru/ipmi-fru.c when a BMC returns more bytes than requested.
When was CVE-2026-85509 disclosed?
CVE-2026-85509 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85509 actively exploited?
CVE-2026-85509 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 67.2% of all scored CVEs.
What is the CVSS score of CVE-2026-85509?
CVE-2026-85509 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-85509?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85509, 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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