CVE-2026-20998

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-03-16. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

Improper authentication in Smart Switch prior to version 3.7.69.15 allows remote attackers to bypass authentication.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

March 16, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=03

Data Freshness Timeline

(refreshed 4× in last 7d / 23× 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.

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

Frequently asked(5)

What is CVE-2026-20998?
CVE-2026-20998 is a critical vulnerability published on March 16, 2026. Improper authentication in Smart Switch prior to version 3.7.69.15 allows remote attackers to bypass authentication.
When was CVE-2026-20998 disclosed?
CVE-2026-20998 was first published in the National Vulnerability Database on March 16, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20998 actively exploited?
CVE-2026-20998 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.2% of all scored CVEs.
What is the CVSS score of CVE-2026-20998?
CVE-2026-20998 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-20998?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20998, 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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