CVE-2026-21101

MEDIUMNVD 6.76.7—
EchelonGraph scoreHIGH confidence

Score 6.7 from GitHub Security Advisory (severity: HIGH) published 2026-09-09. NVD baseline CVSS 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 6.7Exploit: None knownExposed services: Not assessed

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

Improper input validation in DualDAR driver prior to SMR Sep-2026 Release 1 allows local privileged attackers to potentially execute arbitrary code with root privilege.

CVSS v3
6.7
EG Score
6.7MEDIUMhigh confidence
EG Risk
30
EG Risk 30/100CISA 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
Severity67% × 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
0.1%
EPSS %ILE
1st
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

September 9, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09

Vendor Advisories for CVE-2026-21101(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 15× in last 7d / 74× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 12:27 UTCEG score recompute
  3. 2026-10-04 12:27 UTCGHSA enrichment
  4. 2026-10-03 10:28 UTCEG score recompute
  5. 2026-10-03 10:28 UTCGHSA enrichment
  6. 2026-10-02 06:11 UTCEG score recompute
  7. 2026-10-02 06:11 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-10-01 04:11 UTCEG score recompute
  10. 2026-10-01 04:11 UTCGHSA enrichment
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-30 02:06 UTCEG score recompute
  13. 2026-09-30 02:06 UTCGHSA enrichment
  14. 2026-09-29 15:21 UTCEPSS rescore
  15. 2026-09-28 21:27 UTCGHSA enrichment
  16. 2026-09-27 19:28 UTCEG score recompute
  17. 2026-09-27 19:28 UTCGHSA enrichment
  18. 2026-09-27 13:47 UTCEPSS rescore
  19. 2026-09-26 17:21 UTCEG score recompute
  20. 2026-09-26 17:21 UTCGHSA enrichment
  21. 2026-09-26 15:58 UTCEPSS rescore
  22. 2026-09-26 00:26 UTCEPSS rescore
  23. 2026-09-25 15:22 UTCEG score recompute
  24. 2026-09-25 15:22 UTCGHSA enrichment
  25. 2026-09-24 14:03 UTCEPSS rescore
Show 49 more
  1. 2026-09-24 13:21 UTCEG score recompute
  2. 2026-09-24 13:21 UTCGHSA enrichment
  3. 2026-09-23 11:22 UTCEG score recompute
  4. 2026-09-23 11:22 UTCGHSA enrichment
  5. 2026-09-22 09:23 UTCEG score recompute
  6. 2026-09-22 09:23 UTCGHSA enrichment
  7. 2026-09-21 07:23 UTCGHSA enrichment
  8. 2026-09-20 05:22 UTCEG score recompute
  9. 2026-09-20 05:22 UTCGHSA enrichment
  10. 2026-09-19 03:22 UTCEG score recompute
  11. 2026-09-19 03:22 UTCGHSA enrichment
  12. 2026-09-18 19:27 UTCEPSS rescore
  13. 2026-09-18 01:23 UTCEG score recompute
  14. 2026-09-18 01:23 UTCGHSA enrichment
  15. 2026-09-16 23:24 UTCEG score recompute
  16. 2026-09-16 23:24 UTCGHSA enrichment
  17. 2026-09-16 14:07 UTCEPSS rescore
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 21:25 UTCEG score recompute
  20. 2026-09-15 21:25 UTCGHSA enrichment
  21. 2026-09-14 19:25 UTCGHSA enrichment
  22. 2026-09-13 17:26 UTCEG score recompute
  23. 2026-09-13 17:26 UTCGHSA enrichment
  24. 2026-09-13 16:47 UTCEPSS rescore
  25. 2026-09-12 15:26 UTCEG score recompute
  26. 2026-09-12 15:26 UTCGHSA enrichment
  27. 2026-09-12 15:01 UTCEPSS rescore
  28. 2026-09-11 14:52 UTCEPSS rescore
  29. 2026-09-11 13:23 UTCGHSA enrichment
  30. 2026-09-11 13:15 UTCEG score recompute
  31. 2026-09-11 13:15 UTCGHSA enrichment
  32. 2026-09-11 04:21 UTCGHSA enrichment
  33. 2026-09-11 04:01 UTCEG score recompute
  34. 2026-09-11 04:01 UTCGHSA enrichment
  35. 2026-09-10 20:43 UTCEG score recompute▼ 1.70
  36. 2026-09-10 20:43 UTCGHSA enrichment
  37. 2026-09-10 20:42 UTCNVD updateCVSS v3 → 6.7 · severity → MEDIUM
  38. 2026-09-10 18:23 UTCEG score recompute
  39. 2026-09-10 18:23 UTCGHSA enrichment
  40. 2026-09-10 18:05 UTCEG score recompute
  41. 2026-09-10 18:05 UTCGHSA enrichment
  42. 2026-09-10 14:07 UTCEG score recompute
  43. 2026-09-10 14:06 UTCGHSA enrichment
  44. 2026-09-10 09:34 UTCEPSS rescore
  45. 2026-09-10 02:58 UTCGHSA enrichment
  46. 2026-09-09 15:50 UTCGHSA enrichment
  47. 2026-09-09 05:25 UTCEG score recompute
  48. 2026-09-09 04:55 UTCEG score recompute
  49. 2026-09-09 04:55 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-21101?
CVE-2026-21101 is a medium vulnerability published on September 9, 2026. Improper input validation in DualDAR driver prior to SMR Sep-2026 Release 1 allows local privileged attackers to potentially execute arbitrary code with root privilege.
When was CVE-2026-21101 disclosed?
CVE-2026-21101 was first published on September 9, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21101 actively exploited?
CVE-2026-21101 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-21101?
CVE-2026-21101 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2026-21101?
No fix for CVE-2026-21101 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-2026-21101 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21101

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