CVE-2026-20483

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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 Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.

CVSS v3
7.7
EG Score
7.7HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA 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%
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
0.2%
EPSS %ILE
6th
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 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-2026-20483(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 / 81× 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 200 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20483?
CVE-2026-20483 is a high vulnerability published on August 3, 2026. In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.
When was CVE-2026-20483 disclosed?
CVE-2026-20483 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-2026-20483 actively exploited?
CVE-2026-20483 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20483?
CVE-2026-20483 has a CVSS v3.1 base score of 7.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-20483?
No fix for CVE-2026-20483 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-2026-20483 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-20483

Explore →

Is Your Infrastructure Affected by CVE-2026-20483?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs