CVE-2026-21017

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-05. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

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

Improper handling of insufficient privileges in SecTelephonyProvider prior to SMR Jun-2026 Release 1 allows local attackers to access privileged files.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
0.7%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 6, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=06

Vendor Advisories for CVE-2026-21017(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 20× in last 7d / 89× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 19:13 UTCEG score recompute
  6. 2026-07-05 19:13 UTCGHSA enrichment
  7. 2026-07-04 20:50 UTCEG score recompute
  8. 2026-07-04 20:50 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 16:52 UTCEG score recompute
  12. 2026-07-03 16:52 UTCGHSA enrichment
  13. 2026-07-02 15:03 UTCEG score recompute
  14. 2026-07-02 15:02 UTCGHSA enrichment
  15. 2026-07-01 16:39 UTCEG score recompute
  16. 2026-07-01 16:39 UTCGHSA enrichment
  17. 2026-07-01 15:06 UTCEPSS rescore
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-06-30 18:15 UTCEG score recompute
  20. 2026-06-30 18:15 UTCGHSA enrichment
  21. 2026-06-29 13:42 UTCEG score recompute
  22. 2026-06-29 13:42 UTCGHSA enrichment
  23. 2026-06-28 15:20 UTCEG score recompute
  24. 2026-06-28 15:20 UTCGHSA enrichment
  25. 2026-06-28 14:07 UTCEPSS rescore
Show 73 more
  1. 2026-06-27 16:54 UTCEG score recompute
  2. 2026-06-27 16:53 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 18:28 UTCEG score recompute
  5. 2026-06-26 18:28 UTCGHSA enrichment
  6. 2026-06-25 20:06 UTCEG score recompute
  7. 2026-06-25 20:06 UTCGHSA enrichment
  8. 2026-06-25 13:49 UTCEPSS rescore
  9. 2026-06-24 21:40 UTCEG score recompute
  10. 2026-06-24 21:39 UTCGHSA enrichment
  11. 2026-06-24 14:05 UTCEPSS rescore
  12. 2026-06-23 23:04 UTCEG score recompute
  13. 2026-06-23 23:04 UTCGHSA enrichment
  14. 2026-06-23 21:32 UTCEPSS rescore
  15. 2026-06-22 23:01 UTCEG score recompute
  16. 2026-06-22 23:00 UTCGHSA enrichment
  17. 2026-06-22 14:25 UTCEPSS rescore
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-21 14:56 UTCEPSS rescore
  20. 2026-06-21 14:56 UTCEPSS rescore
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-20 10:43 UTCEG score recompute
  24. 2026-06-20 10:43 UTCGHSA enrichment
  25. 2026-06-19 19:25 UTCEPSS rescore
  26. 2026-06-19 12:16 UTCEG score recompute
  27. 2026-06-19 12:16 UTCGHSA enrichment
  28. 2026-06-18 12:18 UTCEG score recompute
  29. 2026-06-18 12:18 UTCGHSA enrichment
  30. 2026-06-17 17:53 UTCEPSS rescore
  31. 2026-06-17 13:37 UTCEG score recompute
  32. 2026-06-17 13:37 UTCGHSA enrichment
  33. 2026-06-16 15:13 UTCEG score recompute
  34. 2026-06-16 15:13 UTCGHSA enrichment
  35. 2026-06-15 17:48 UTCEPSS rescore
  36. 2026-06-15 16:49 UTCEG score recompute
  37. 2026-06-15 16:49 UTCGHSA enrichment
  38. 2026-06-14 23:18 UTCEPSS rescore
  39. 2026-06-14 18:25 UTCEG score recompute
  40. 2026-06-14 18:24 UTCGHSA enrichment
  41. 2026-06-13 23:00 UTCEPSS rescore
  42. 2026-06-13 23:00 UTCEPSS rescore
  43. 2026-06-13 20:02 UTCEG score recompute
  44. 2026-06-13 20:02 UTCGHSA enrichment
  45. 2026-06-12 23:12 UTCEPSS rescore
  46. 2026-06-12 21:37 UTCEG score recompute
  47. 2026-06-12 21:37 UTCGHSA enrichment
  48. 2026-06-11 23:13 UTCEG score recompute
  49. 2026-06-11 23:13 UTCGHSA enrichment
  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-11 00:50 UTCEG score recompute
  52. 2026-06-11 00:50 UTCGHSA enrichment
  53. 2026-06-10 22:18 UTCEPSS rescore
  54. 2026-06-10 13:22 UTCEPSS rescore
  55. 2026-06-10 02:27 UTCEG score recompute
  56. 2026-06-10 02:27 UTCGHSA enrichment
  57. 2026-06-09 04:05 UTCEG score recompute
  58. 2026-06-09 04:05 UTCGHSA enrichment
  59. 2026-06-08 14:17 UTCEPSS rescore
  60. 2026-06-08 14:17 UTCEPSS rescore
  61. 2026-06-08 05:42 UTCEG score recompute
  62. 2026-06-08 05:42 UTCGHSA enrichment
  63. 2026-06-07 15:25 UTCEPSS rescore
  64. 2026-06-07 15:24 UTCEPSS rescore
  65. 2026-06-07 07:20 UTCEG score recompute
  66. 2026-06-07 07:20 UTCGHSA enrichment
  67. 2026-06-06 13:47 UTCEPSS rescore
  68. 2026-06-06 13:47 UTCEPSS rescore
  69. 2026-06-06 13:47 UTCEPSS rescore
  70. 2026-06-06 08:57 UTCEG score recompute▲ 0.90
  71. 2026-06-06 08:57 UTCGHSA enrichment
  72. 2026-06-05 22:47 UTCEPSS rescore
  73. 2026-06-05 10:34 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-21017?
CVE-2026-21017 is a medium vulnerability published on June 5, 2026. Improper handling of insufficient privileges in SecTelephonyProvider prior to SMR Jun-2026 Release 1 allows local attackers to access privileged files.
When was CVE-2026-21017 disclosed?
CVE-2026-21017 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21017 actively exploited?
CVE-2026-21017 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-21017?
CVE-2026-21017 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-21017?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21017, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21017

Explore →

Is Your Infrastructure Affected by CVE-2026-21017?

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

Start Free Scan →Browse All CVEs