CVE-2025-31938

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: <0.1% (below the 1st percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 4.3Exploit: None knownExposed services: Not assessed

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

Insufficient granularity of access control in some subsystem for some Intel(R) Xeon(R) 6 Scalable processors with Intel(R) TDX may allow an information disclosure. Authorized adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (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 11, 2026

Last Modified

September 29, 2026

Advisory Details (1)

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

INTEL-SA-01404

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01404.html

Vendor Advisories for CVE-2025-31938(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 rangeFix by version rangeDependents
intel-microcode0.20080131-1 ... 3.20260227.1 (210 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
intel-microcode0.20080131-1 ... 3.20260227.1 (210 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
intel-microcode0.20080131-1 ... 3.20260227.1 (210 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 56× 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 113 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2025-31938?
CVE-2025-31938 is a medium vulnerability published on August 11, 2026. Insufficient granularity of access control in some subsystem for some Intel(R) Xeon(R) 6 Scalable processors with Intel(R) TDX may allow an information disclosure. Authorized adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may…
When was CVE-2025-31938 disclosed?
CVE-2025-31938 was first published on August 11, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-31938 actively exploited?
CVE-2025-31938 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-31938?
CVE-2025-31938 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-31938?
No fix for CVE-2025-31938 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-2025-31938 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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