CVE-2026-90137

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. A secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.7EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.7Exploit: None knownExposed services: Not assessed

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

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: hp-bioscfg: fix password encoding bounds check

The password PSWD_ENCODINGS parser reads password_obj[elem + pos_values] while copying the supported password encodings from the ACPI package.

The outer loop only guarantees that elem is within password_obj_count. The encoding count is bounded by MAX_ENCODINGS_SIZE, but that does not guarantee that the ACPI package contains enough entries for all elem + pos_values accesses.

A malformed package can therefore declare a non-zero encoding count without providing enough string objects, causing the parser to read past the ACPI package array and pass an out-of-bounds string pointer and length to hp_convert_hexstr_to_str().

Add the same computed-index bounds check used by the other offset-based package parsing loops before reading password_obj[elem + pos_values].

CVSS v3
7.7
EG Score
7.7HIGHhigh confidence
EG Risk
39
EG Risk 39/100CISA 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
Severity77% × 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
0.2%
EPSS %ILE
7th
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

September 17, 2026

Last Modified

September 18, 2026

Advisory Details (5)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

platform/x86: hp-bioscfg: fix password encoding bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e213939ed9e6e6badf7aa48c4c8dd9a9cdf00615
generic

platform/x86: hp-bioscfg: fix password encoding bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c224759555a13735b0d67561d818cefe00c3309a
generic

platform/x86: hp-bioscfg: fix password encoding bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ace1ba5fca0ab775b3641e154bcbc3ccde26a71a
generic

platform/x86: hp-bioscfg: fix password encoding bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8a7499b8fd34438c1b11964e0e7ef5bd590fec92
generic

platform/x86: hp-bioscfg: fix password encoding bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/59fe8491ddaa03a510b352552e6ee291e7ce45d3

Vendor Advisories for CVE-2026-90137(1)

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 rangeFix by version rangeDependents
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 28× in last 7d / 75× 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. 2026-10-05 03:23 UTCEG score recompute
  2. 2026-10-05 03:23 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 16:32 UTCGHSA enrichment
  5. 2026-10-04 05:40 UTCGHSA enrichment
  6. 2026-10-03 18:50 UTCEG score recompute
  7. 2026-10-03 18:49 UTCGHSA enrichment
  8. 2026-10-03 07:06 UTCGHSA enrichment
  9. 2026-10-02 20:15 UTCEG score recompute
  10. 2026-10-02 20:14 UTCGHSA enrichment
  11. 2026-10-02 09:17 UTCGHSA enrichment
  12. 2026-10-01 22:26 UTCEG score recompute
  13. 2026-10-01 22:26 UTCGHSA enrichment
  14. 2026-10-01 19:51 UTCEPSS rescore
  15. 2026-10-01 11:30 UTCGHSA enrichment
  16. 2026-10-01 00:40 UTCEG score recompute
  17. 2026-10-01 00:40 UTCGHSA enrichment
  18. 2026-09-30 15:04 UTCEPSS rescore
  19. 2026-09-30 13:48 UTCGHSA enrichment
  20. 2026-09-30 02:51 UTCGHSA enrichment
  21. 2026-09-29 16:00 UTCEG score recompute
  22. 2026-09-29 16:00 UTCGHSA enrichment
  23. 2026-09-29 05:09 UTCEG score recompute
  24. 2026-09-29 05:09 UTCGHSA enrichment
  25. 2026-09-28 18:18 UTCEG score recompute
Show 50 more
  1. 2026-09-28 18:18 UTCGHSA enrichment
  2. 2026-09-28 13:52 UTCEPSS rescore
  3. 2026-09-28 13:52 UTCEPSS rescore
  4. 2026-09-28 07:15 UTCGHSA enrichment
  5. 2026-09-27 20:24 UTCEG score recompute
  6. 2026-09-27 20:24 UTCGHSA enrichment
  7. 2026-09-27 13:49 UTCEPSS rescore
  8. 2026-09-27 09:33 UTCGHSA enrichment
  9. 2026-09-26 22:41 UTCEG score recompute
  10. 2026-09-26 22:41 UTCGHSA enrichment
  11. 2026-09-26 15:59 UTCEPSS rescore
  12. 2026-09-26 11:38 UTCGHSA enrichment
  13. 2026-09-26 00:47 UTCEG score recompute
  14. 2026-09-26 00:47 UTCGHSA enrichment
  15. 2026-09-25 13:25 UTCGHSA enrichment
  16. 2026-09-25 02:33 UTCGHSA enrichment
  17. 2026-09-24 15:41 UTCEG score recompute
  18. 2026-09-24 15:41 UTCGHSA enrichment
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-24 04:50 UTCGHSA enrichment
  21. 2026-09-23 17:58 UTCEG score recompute
  22. 2026-09-23 17:58 UTCGHSA enrichment
  23. 2026-09-23 17:54 UTCEPSS rescore
  24. 2026-09-23 07:07 UTCGHSA enrichment
  25. 2026-09-22 20:16 UTCEG score recompute
  26. 2026-09-22 20:16 UTCGHSA enrichment
  27. 2026-09-22 16:01 UTCEPSS rescore
  28. 2026-09-22 09:23 UTCGHSA enrichment
  29. 2026-09-21 22:31 UTCEG score recompute
  30. 2026-09-21 22:31 UTCGHSA enrichment
  31. 2026-09-21 21:09 UTCEPSS rescore
  32. 2026-09-21 11:40 UTCGHSA enrichment
  33. 2026-09-21 00:49 UTCEG score recompute
  34. 2026-09-21 00:49 UTCGHSA enrichment
  35. 2026-09-20 20:16 UTCEPSS rescore
  36. 2026-09-20 13:57 UTCGHSA enrichment
  37. 2026-09-20 03:06 UTCGHSA enrichment
  38. 2026-09-19 16:14 UTCEG score recompute
  39. 2026-09-19 16:14 UTCGHSA enrichment
  40. 2026-09-19 05:23 UTCEG score recompute
  41. 2026-09-19 05:22 UTCGHSA enrichment
  42. 2026-09-18 19:28 UTCEPSS rescore
  43. 2026-09-18 18:31 UTCEG score recompute
  44. 2026-09-18 18:31 UTCGHSA enrichment
  45. 2026-09-18 18:05 UTCEG score recompute▲ 7.70
  46. 2026-09-18 18:05 UTCGHSA enrichment
  47. 2026-09-18 17:59 UTCMITRE cvelistV5CVSS v3 → 7.7 · severity → HIGH
  48. 2026-09-17 17:23 UTCNVD update
  49. 2026-09-17 16:47 UTCEG score recompute
  50. 2026-09-17 16:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90137?
CVE-2026-90137 is a high vulnerability published on September 17, 2026. In the Linux kernel, the following vulnerability has been resolved: platform/x86: hp-bioscfg: fix password encoding bounds check The password PSWDENCODINGS parser reads passwordobj[elem + pos_values] while copying the supported password encodings from the ACPI package. The outer loop only…
When was CVE-2026-90137 disclosed?
CVE-2026-90137 was first published on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90137 actively exploited?
CVE-2026-90137 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90137?
CVE-2026-90137 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-90137?
No fix for CVE-2026-90137 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-2026-90137 are linked in the Vendor Advisories panel on this page.

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