CVE-2026-20763

MEDIUMNVD 4.24.2—
EchelonGraph scoreMEDIUM confidence

Score 4.2 from GitHub Security Advisory published 2026-08-11. NVD baseline CVSS 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.2Exploit: None knownExposed: 0

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

Incorrect calculation for some Intel(R) TDX Guest software before version 0.3.1 within Ring 3: User Applications may allow an escalation of privilege. System software adversary with a privileged user combined with a low 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 (low), integrity (low) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

CVSS v3
4.2
EG Score
4.2(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity42% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 18, 2026

Advisory Details (1)

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

INTEL-SA-01462

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01462.html

Vendor Advisories for CVE-2026-20763(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 / 79× 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 108 total refreshes for this CVE.

  1. 2026-09-18 23:27 UTCEG score recompute
  2. 2026-09-18 23:27 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 00:46 UTCEG score recompute
  5. 2026-09-18 00:46 UTCGHSA enrichment
  6. 2026-09-17 00:42 UTCEG score recompute
  7. 2026-09-17 00:42 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 02:01 UTCEG score recompute
  11. 2026-09-16 02:01 UTCGHSA enrichment
  12. 2026-09-14 22:42 UTCGHSA enrichment
  13. 2026-09-13 23:01 UTCEG score recompute
  14. 2026-09-13 23:01 UTCGHSA enrichment
  15. 2026-09-13 16:47 UTCEPSS rescore
  16. 2026-09-13 00:21 UTCEG score recompute
  17. 2026-09-13 00:21 UTCGHSA enrichment
  18. 2026-09-12 15:01 UTCEPSS rescore
  19. 2026-09-12 01:40 UTCEG score recompute
  20. 2026-09-12 01:40 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 03:00 UTCEG score recompute
  23. 2026-09-11 03:00 UTCGHSA enrichment
  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-10 04:19 UTCGHSA enrichment
Show 75 more
  1. 2026-09-09 05:39 UTCEG score recompute
  2. 2026-09-09 05:39 UTCGHSA enrichment
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-07 17:00 UTCEG score recompute
  5. 2026-09-07 17:00 UTCGHSA enrichment
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-06 05:28 UTCEG score recompute
  10. 2026-09-06 05:28 UTCGHSA enrichment
  11. 2026-09-05 06:48 UTCEG score recompute
  12. 2026-09-05 06:48 UTCGHSA enrichment
  13. 2026-09-04 08:07 UTCGHSA enrichment
  14. 2026-09-03 05:55 UTCEG score recompute
  15. 2026-09-03 05:55 UTCGHSA enrichment
  16. 2026-09-02 14:11 UTCEPSS rescore
  17. 2026-09-02 06:23 UTCEG score recompute
  18. 2026-09-02 06:22 UTCGHSA enrichment
  19. 2026-09-01 13:53 UTCEPSS rescore
  20. 2026-09-01 06:35 UTCEG score recompute
  21. 2026-09-01 06:35 UTCGHSA enrichment
  22. 2026-09-01 04:39 UTCEPSS rescore
  23. 2026-08-31 06:54 UTCEG score recompute
  24. 2026-08-31 06:54 UTCGHSA enrichment
  25. 2026-08-30 19:17 UTCEPSS rescore
  26. 2026-08-30 08:14 UTCEG score recompute
  27. 2026-08-30 08:14 UTCGHSA enrichment
  28. 2026-08-30 01:22 UTCEPSS rescore
  29. 2026-08-29 09:34 UTCEG score recompute
  30. 2026-08-29 09:34 UTCGHSA enrichment
  31. 2026-08-28 21:41 UTCEPSS rescore
  32. 2026-08-28 06:10 UTCEG score recompute
  33. 2026-08-28 06:09 UTCGHSA enrichment
  34. 2026-08-27 14:25 UTCEPSS rescore
  35. 2026-08-27 07:26 UTCEG score recompute
  36. 2026-08-27 07:26 UTCGHSA enrichment
  37. 2026-08-26 14:46 UTCEPSS rescore
  38. 2026-08-26 06:38 UTCEG score recompute
  39. 2026-08-26 06:38 UTCGHSA enrichment
  40. 2026-08-25 13:48 UTCEPSS rescore
  41. 2026-08-25 07:55 UTCEG score recompute
  42. 2026-08-25 07:55 UTCGHSA enrichment
  43. 2026-08-24 09:15 UTCGHSA enrichment
  44. 2026-08-23 10:34 UTCEG score recompute
  45. 2026-08-23 10:34 UTCGHSA enrichment
  46. 2026-08-23 00:19 UTCEPSS rescore
  47. 2026-08-22 11:53 UTCEG score recompute
  48. 2026-08-22 11:52 UTCGHSA enrichment
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-21 12:59 UTCEG score recompute
  51. 2026-08-21 12:59 UTCGHSA enrichment
  52. 2026-08-20 22:55 UTCEPSS rescore
  53. 2026-08-20 14:16 UTCEG score recompute
  54. 2026-08-20 14:16 UTCGHSA enrichment
  55. 2026-08-19 17:03 UTCEPSS rescore
  56. 2026-08-19 14:40 UTCEG score recompute
  57. 2026-08-19 14:40 UTCGHSA enrichment
  58. 2026-08-18 16:00 UTCEG score recompute▼ 0.40
  59. 2026-08-18 16:00 UTCGHSA enrichment
  60. 2026-08-18 15:59 UTCNVD updateCVSS v3 → 4.2
  61. 2026-08-18 13:48 UTCEPSS rescore
  62. 2026-08-18 13:03 UTCGHSA enrichment
  63. 2026-08-17 14:23 UTCGHSA enrichment
  64. 2026-08-16 15:43 UTCEG score recompute
  65. 2026-08-16 15:43 UTCGHSA enrichment
  66. 2026-08-16 14:56 UTCEPSS rescore
  67. 2026-08-16 02:14 UTCEPSS rescore
  68. 2026-08-15 17:03 UTCEG score recompute
  69. 2026-08-15 17:03 UTCGHSA enrichment
  70. 2026-08-15 01:30 UTCEPSS rescore
  71. 2026-08-14 18:22 UTCEG score recompute
  72. 2026-08-14 18:22 UTCGHSA enrichment
  73. 2026-08-13 22:00 UTCEPSS rescore
  74. 2026-08-13 19:42 UTCGHSA enrichment
  75. 2026-08-12 21:02 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-20763?
CVE-2026-20763 is a medium vulnerability published on August 11, 2026. Incorrect calculation for some Intel(R) TDX Guest software before version 0.3.1 within Ring 3: User Applications may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may…
When was CVE-2026-20763 disclosed?
CVE-2026-20763 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20763 actively exploited?
CVE-2026-20763 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 98.5% of all scored CVEs.
What is the CVSS score of CVE-2026-20763?
CVE-2026-20763 has a CVSS v3 base score of 4.2 (NVD).
How do I remediate CVE-2026-20763?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20763, 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.

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