CVE-2026-20493

MEDIUMPre-NVD 4.44.4—
EchelonGraph scoreMEDIUM confidence

Score 4.4 from GitHub Security Advisory published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 4.4Exploit: 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 wifi, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: BORA00154903; Issue ID: MSV-7575.

CVSS v3
4.4
EG Score
4.4MEDIUMmedium confidence
EG Risk
20
EG Risk 20/100CISA 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
Severity44% × 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
3rd
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 3, 2026

Last Modified

August 19, 2026

Advisory Details (1)

Auto-updated Aug 3, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

August 2026 MediaTek Security Bulletin

https://www.mediatek.com/product-security-bulletin/August-2026

Vendor Advisories for CVE-2026-20493(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 13× in last 7d / 58× 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 146 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20493?
CVE-2026-20493 is a medium vulnerability published on August 3, 2026. In wifi, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: BORA00154903; Issue ID: MSV-7575.
When was CVE-2026-20493 disclosed?
CVE-2026-20493 was first published on August 3, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20493 actively exploited?
CVE-2026-20493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20493?
CVE-2026-20493 has a CVSS v3.1 base score of 4.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-20493?
No fix for CVE-2026-20493 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-2026-20493 are linked in the Vendor Advisories panel on this page.

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