CVE-2026-21036

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 — 4 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 authorization in Samsung Internet prior to version 30.0.0.39 allows local attackers to access sensitive information.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
0.8%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 13, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

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

Vendor Advisories for CVE-2026-21036(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 19× 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. 2026-07-05 22:00 UTCEG score recompute
  4. 2026-07-05 22:00 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 20:49 UTCEG score recompute
  7. 2026-07-04 20:49 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 09:51 UTCEG score recompute
  11. 2026-07-03 09:51 UTCGHSA enrichment
  12. 2026-07-02 08:01 UTCEG score recompute
  13. 2026-07-02 08:01 UTCGHSA enrichment
  14. 2026-07-01 15:06 UTCEPSS rescore
  15. 2026-07-01 15:06 UTCEPSS rescore
  16. 2026-07-01 07:20 UTCEG score recompute▼ 0.80
  17. 2026-07-01 07:20 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 18:32 UTCNVD updateCVSS v3 → 5.5
  20. 2026-06-30 03:53 UTCEG score recompute
  21. 2026-06-30 03:53 UTCGHSA enrichment
  22. 2026-06-29 03:14 UTCEG score recompute
  23. 2026-06-29 03:14 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
Show 71 more
  1. 2026-06-28 04:56 UTCEPSS rescore
  2. 2026-06-28 02:35 UTCEG score recompute
  3. 2026-06-28 02:35 UTCGHSA enrichment
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-27 01:55 UTCEG score recompute
  6. 2026-06-27 01:55 UTCGHSA enrichment
  7. 2026-06-26 01:15 UTCEG score recompute
  8. 2026-06-26 01:15 UTCGHSA enrichment
  9. 2026-06-25 13:49 UTCEPSS rescore
  10. 2026-06-25 00:27 UTCEG score recompute
  11. 2026-06-25 00:27 UTCGHSA enrichment
  12. 2026-06-23 23:46 UTCEG score recompute
  13. 2026-06-23 23:46 UTCGHSA enrichment
  14. 2026-06-23 21:32 UTCEPSS rescore
  15. 2026-06-22 23:00 UTCEG score recompute
  16. 2026-06-22 22:59 UTCGHSA enrichment
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 14:56 UTCEPSS rescore
  19. 2026-06-21 05:25 UTCEG score recompute
  20. 2026-06-21 05:24 UTCGHSA enrichment
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-19 23:35 UTCEG score recompute
  24. 2026-06-19 23:35 UTCGHSA enrichment
  25. 2026-06-19 19:25 UTCEPSS rescore
  26. 2026-06-18 21:13 UTCEG score recompute
  27. 2026-06-18 21:13 UTCGHSA enrichment
  28. 2026-06-18 17:52 UTCEPSS rescore
  29. 2026-06-17 19:57 UTCEG score recompute
  30. 2026-06-17 19:57 UTCGHSA enrichment
  31. 2026-06-17 17:53 UTCEPSS rescore
  32. 2026-06-16 19:18 UTCEG score recompute
  33. 2026-06-16 19:17 UTCGHSA enrichment
  34. 2026-06-16 17:52 UTCEPSS rescore
  35. 2026-06-15 18:38 UTCEG score recompute
  36. 2026-06-15 18:38 UTCGHSA enrichment
  37. 2026-06-15 17:48 UTCEPSS rescore
  38. 2026-06-14 23:18 UTCEPSS rescore
  39. 2026-06-14 16:43 UTCEG score recompute
  40. 2026-06-14 16:43 UTCGHSA enrichment
  41. 2026-06-13 23:00 UTCEPSS rescore
  42. 2026-06-13 23:00 UTCEPSS rescore
  43. 2026-06-13 16:03 UTCEG score recompute
  44. 2026-06-13 16:03 UTCGHSA enrichment
  45. 2026-06-12 23:12 UTCEPSS rescore
  46. 2026-06-12 15:10 UTCEG score recompute
  47. 2026-06-12 15:10 UTCGHSA enrichment
  48. 2026-06-11 14:31 UTCEG score recompute
  49. 2026-06-11 14:31 UTCGHSA enrichment
  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-10 22:18 UTCEPSS rescore
  52. 2026-06-10 13:51 UTCEG score recompute
  53. 2026-06-10 13:51 UTCGHSA enrichment
  54. 2026-06-10 13:22 UTCEPSS rescore
  55. 2026-06-09 13:12 UTCEG score recompute
  56. 2026-06-09 13:12 UTCGHSA enrichment
  57. 2026-06-08 14:17 UTCEPSS rescore
  58. 2026-06-08 14:17 UTCEPSS rescore
  59. 2026-06-08 12:32 UTCEG score recompute
  60. 2026-06-08 12:32 UTCGHSA enrichment
  61. 2026-06-07 15:25 UTCEPSS rescore
  62. 2026-06-07 15:24 UTCEPSS rescore
  63. 2026-06-07 11:53 UTCEG score recompute
  64. 2026-06-07 11:53 UTCGHSA enrichment
  65. 2026-06-06 13:47 UTCEPSS rescore
  66. 2026-06-06 13:47 UTCEPSS rescore
  67. 2026-06-06 13:47 UTCEPSS rescore
  68. 2026-06-06 11:13 UTCEG score recompute
  69. 2026-06-06 11:13 UTCGHSA enrichment
  70. 2026-06-05 22:47 UTCEPSS rescore
  71. 2026-06-05 10:34 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-21036?
CVE-2026-21036 is a medium vulnerability published on June 5, 2026. Improper authorization in Samsung Internet prior to version 30.0.0.39 allows local attackers to access sensitive information.
When was CVE-2026-21036 disclosed?
CVE-2026-21036 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21036 actively exploited?
CVE-2026-21036 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-21036?
CVE-2026-21036 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-21036?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21036, 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-2026-21036

Explore →

Is Your Infrastructure Affected by CVE-2026-21036?

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

Start Free Scan →Browse All CVEs