CVE-2026-21062

LOWNVD 3.33.3
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory published 2026-08-10. NVD baseline CVSS 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.3Exploit: None knownExposed: 0

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

Authorization bypass in SemClipboardService prior to SMR Aug-2026 Release 1 allows local attackers to access clipboard data.

CVSS v3
3.3
EG Score
3.3(medium)
EG Risk
15(Track)
EG Risk 15/100SSVC: 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
Severity33% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (1)

Auto-updated Aug 10, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-21062(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 10× in last 7d / 39× 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. 2026-09-18 15:13 UTCEG score recompute
  3. 2026-09-18 15:13 UTCGHSA enrichment
  4. 2026-09-16 14:07 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 14:08 UTCEG score recompute
  7. 2026-09-15 14:08 UTCGHSA enrichment
  8. 2026-09-12 15:01 UTCEPSS rescore
  9. 2026-09-12 10:20 UTCEG score recompute
  10. 2026-09-12 10:20 UTCGHSA enrichment
  11. 2026-09-11 14:52 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-09 09:12 UTCEG score recompute
  14. 2026-09-09 09:12 UTCGHSA enrichment
  15. 2026-09-08 22:00 UTCEPSS rescore
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-06 08:07 UTCEG score recompute
  20. 2026-09-06 08:07 UTCGHSA enrichment
  21. 2026-09-03 07:00 UTCEG score recompute
  22. 2026-09-03 06:59 UTCGHSA enrichment
  23. 2026-09-02 14:11 UTCEPSS rescore
  24. 2026-09-01 13:53 UTCEPSS rescore
  25. 2026-08-31 05:46 UTCEG score recompute
Show 47 more
  1. 2026-08-31 05:46 UTCGHSA enrichment
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-28 04:40 UTCEG score recompute
  4. 2026-08-28 04:40 UTCGHSA enrichment
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 14:46 UTCEPSS rescore
  7. 2026-08-25 13:48 UTCEPSS rescore
  8. 2026-08-25 03:30 UTCEG score recompute
  9. 2026-08-25 03:30 UTCGHSA enrichment
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 02:25 UTCEG score recompute
  12. 2026-08-22 02:25 UTCGHSA enrichment
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-19 17:03 UTCEPSS rescore
  16. 2026-08-19 01:20 UTCEG score recompute 1.50
  17. 2026-08-19 01:20 UTCGHSA enrichment
  18. 2026-08-19 01:19 UTCNVD updateCVSS v3 → 3.3 · severity → LOW
  19. 2026-08-18 15:34 UTCGHSA enrichment
  20. 2026-08-18 01:18 UTCEG score recompute
  21. 2026-08-18 01:18 UTCGHSA enrichment
  22. 2026-08-17 13:47 UTCEPSS rescore
  23. 2026-08-17 00:05 UTCEG score recompute
  24. 2026-08-17 00:05 UTCGHSA enrichment
  25. 2026-08-16 14:56 UTCEPSS rescore
  26. 2026-08-16 02:14 UTCEPSS rescore
  27. 2026-08-15 22:58 UTCEG score recompute
  28. 2026-08-15 22:58 UTCGHSA enrichment
  29. 2026-08-15 01:30 UTCEPSS rescore
  30. 2026-08-14 21:50 UTCEG score recompute
  31. 2026-08-14 21:50 UTCGHSA enrichment
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-13 20:43 UTCGHSA enrichment
  34. 2026-08-12 19:36 UTCEG score recompute
  35. 2026-08-12 19:36 UTCGHSA enrichment
  36. 2026-08-12 13:50 UTCEPSS rescore
  37. 2026-08-11 18:29 UTCEG score recompute
  38. 2026-08-11 18:29 UTCGHSA enrichment
  39. 2026-08-11 13:42 UTCEPSS rescore
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 17:22 UTCEG score recompute
  42. 2026-08-10 17:22 UTCGHSA enrichment
  43. 2026-08-10 16:50 UTCEG score recompute
  44. 2026-08-10 16:50 UTCGHSA enrichment
  45. 2026-08-10 08:20 UTCEG score recompute
  46. 2026-08-10 07:41 UTCEG score recompute
  47. 2026-08-10 07:41 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-21062?
CVE-2026-21062 is a low vulnerability published on August 10, 2026. Authorization bypass in SemClipboardService prior to SMR Aug-2026 Release 1 allows local attackers to access clipboard data.
When was CVE-2026-21062 disclosed?
CVE-2026-21062 was first published in the National Vulnerability Database on August 10, 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-2026-21062 actively exploited?
CVE-2026-21062 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.3% of all scored CVEs.
What is the CVSS score of CVE-2026-21062?
CVE-2026-21062 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-21062?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21062, 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-2026-21062

Explore →

Is Your Infrastructure Affected by CVE-2026-21062?

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