CVE-2026-20898

HIGHNVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. NVD baseline CVSS 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.2Exploit: None knownExposed services: Not assessed

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

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
32
EG Risk 32/100CISA 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
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* 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, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* 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, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

August 31, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

INTEL-SA-01439

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01439.html

Vendor Advisories for CVE-2026-20898(2)

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 / 96× 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 205 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-20898?
CVE-2026-20898 is a high vulnerability published on August 11, 2026. Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result…
When was CVE-2026-20898 disclosed?
CVE-2026-20898 was first published on August 11, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20898 actively exploited?
CVE-2026-20898 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20898?
CVE-2026-20898 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-20898?
No fix for CVE-2026-20898 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-2026-20898 are linked in the Vendor Advisories panel on this page.

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