CVE-2021-25395

CRITICALNVD 6.49.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-06-29), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.4 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 0%CVSS: 6.4Exploit: cisa kev · ssvc activeExposed: 0

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

A race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows local attackers to bypass signature check given a radio privilege is compromised.

CVSS v3
6.4
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
30%
KEV
⚠ Exploited

Published

June 11, 2021

Last Modified

October 30, 2025

Advisory Details (2)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25395
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 65× in last 7d / 271× 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.

Showing the most recent 100 of 993 total refreshes for this CVE.

  1. 2026-09-20 13:08 UTCGHSA enrichment
  2. 2026-09-20 09:28 UTCGHSA enrichment
  3. 2026-09-20 05:49 UTCGHSA enrichment
  4. 2026-09-20 02:10 UTCGHSA enrichment
  5. 2026-09-19 22:30 UTCGHSA enrichment
  6. 2026-09-19 18:51 UTCEG score recompute
  7. 2026-09-19 18:51 UTCGHSA enrichment
  8. 2026-09-19 15:37 UTCEPSS rescore
  9. 2026-09-19 15:11 UTCGHSA enrichment
  10. 2026-09-19 11:31 UTCGHSA enrichment
  11. 2026-09-19 07:51 UTCGHSA enrichment
  12. 2026-09-19 04:12 UTCGHSA enrichment
  13. 2026-09-19 00:33 UTCGHSA enrichment
  14. 2026-09-18 20:54 UTCEG score recompute
  15. 2026-09-18 20:54 UTCGHSA enrichment
  16. 2026-09-18 19:23 UTCEPSS rescore
  17. 2026-09-18 19:20 UTCCISA KEV update
  18. 2026-09-18 17:15 UTCGHSA enrichment
  19. 2026-09-18 14:15 UTCCISA KEV update
  20. 2026-09-18 13:36 UTCGHSA enrichment
  21. 2026-09-18 09:57 UTCGHSA enrichment
  22. 2026-09-18 06:18 UTCGHSA enrichment
  23. 2026-09-18 02:39 UTCGHSA enrichment
  24. 2026-09-17 22:59 UTCEG score recompute
  25. 2026-09-17 22:59 UTCGHSA enrichment
Show 75 more
  1. 2026-09-17 19:23 UTCEPSS rescore
  2. 2026-09-17 19:23 UTCEPSS rescore
  3. 2026-09-17 19:19 UTCGHSA enrichment
  4. 2026-09-17 15:39 UTCGHSA enrichment
  5. 2026-09-17 12:00 UTCGHSA enrichment
  6. 2026-09-17 08:20 UTCGHSA enrichment
  7. 2026-09-17 04:41 UTCGHSA enrichment
  8. 2026-09-17 01:02 UTCGHSA enrichment
  9. 2026-09-16 21:23 UTCGHSA enrichment
  10. 2026-09-16 17:43 UTCEG score recompute
  11. 2026-09-16 17:43 UTCGHSA enrichment
  12. 2026-09-16 14:10 UTCCISA KEV update
  13. 2026-09-16 14:05 UTCEPSS rescore
  14. 2026-09-16 14:03 UTCGHSA enrichment
  15. 2026-09-16 10:23 UTCGHSA enrichment
  16. 2026-09-16 06:44 UTCEG score recompute
  17. 2026-09-16 06:44 UTCGHSA enrichment
  18. 2026-09-16 03:05 UTCGHSA enrichment
  19. 2026-09-15 23:25 UTCGHSA enrichment
  20. 2026-09-15 19:46 UTCGHSA enrichment
  21. 2026-09-15 16:07 UTCGHSA enrichment
  22. 2026-09-15 12:28 UTCGHSA enrichment
  23. 2026-09-15 08:49 UTCGHSA enrichment
  24. 2026-09-15 05:09 UTCEG score recompute
  25. 2026-09-15 05:09 UTCGHSA enrichment
  26. 2026-09-15 03:06 UTCEPSS rescore
  27. 2026-09-15 03:06 UTCEPSS rescore
  28. 2026-09-15 01:28 UTCGHSA enrichment
  29. 2026-09-14 21:48 UTCGHSA enrichment
  30. 2026-09-14 19:24 UTCCISA KEV update
  31. 2026-09-14 18:09 UTCGHSA enrichment
  32. 2026-09-14 14:30 UTCGHSA enrichment
  33. 2026-09-14 10:51 UTCGHSA enrichment
  34. 2026-09-14 07:12 UTCGHSA enrichment
  35. 2026-09-14 03:33 UTCGHSA enrichment
  36. 2026-09-13 23:54 UTCGHSA enrichment
  37. 2026-09-13 20:15 UTCEG score recompute
  38. 2026-09-13 20:15 UTCGHSA enrichment
  39. 2026-09-13 16:43 UTCEPSS rescore
  40. 2026-09-13 16:35 UTCGHSA enrichment
  41. 2026-09-13 12:56 UTCGHSA enrichment
  42. 2026-09-13 09:17 UTCGHSA enrichment
  43. 2026-09-13 05:38 UTCGHSA enrichment
  44. 2026-09-13 01:58 UTCGHSA enrichment
  45. 2026-09-12 22:20 UTCGHSA enrichment
  46. 2026-09-12 18:41 UTCGHSA enrichment
  47. 2026-09-12 15:01 UTCEG score recompute
  48. 2026-09-12 15:01 UTCGHSA enrichment
  49. 2026-09-12 14:57 UTCEPSS rescore
  50. 2026-09-12 11:22 UTCGHSA enrichment
  51. 2026-09-12 07:42 UTCGHSA enrichment
  52. 2026-09-12 04:03 UTCGHSA enrichment
  53. 2026-09-12 00:24 UTCGHSA enrichment
  54. 2026-09-11 20:45 UTCGHSA enrichment
  55. 2026-09-11 18:49 UTCCISA KEV update
  56. 2026-09-11 17:06 UTCEG score recompute
  57. 2026-09-11 17:06 UTCGHSA enrichment
  58. 2026-09-11 14:49 UTCEPSS rescore
  59. 2026-09-11 13:26 UTCGHSA enrichment
  60. 2026-09-11 09:47 UTCEG score recompute
  61. 2026-09-11 09:47 UTCGHSA enrichment
  62. 2026-09-11 09:33 UTCEPSS rescore
  63. 2026-09-11 06:07 UTCGHSA enrichment
  64. 2026-09-11 02:28 UTCGHSA enrichment
  65. 2026-09-10 22:49 UTCGHSA enrichment
  66. 2026-09-10 19:28 UTCCISA KEV update
  67. 2026-09-10 19:10 UTCGHSA enrichment
  68. 2026-09-10 15:30 UTCGHSA enrichment
  69. 2026-09-10 11:51 UTCEG score recompute
  70. 2026-09-10 11:51 UTCGHSA enrichment
  71. 2026-09-10 08:12 UTCGHSA enrichment
  72. 2026-09-10 04:33 UTCGHSA enrichment
  73. 2026-09-10 00:54 UTCGHSA enrichment
  74. 2026-09-09 21:15 UTCGHSA enrichment
  75. 2026-09-09 19:08 UTCCISA KEV update

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2021-25395?
CVE-2021-25395 is a critical vulnerability published on June 11, 2021. A race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows local attackers to bypass signature check given a radio privilege is compromised.
When was CVE-2021-25395 disclosed?
CVE-2021-25395 was first published in the National Vulnerability Database on June 11, 2021, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-25395 actively exploited?
Yes. CISA added CVE-2021-25395 to the Known Exploited Vulnerabilities catalog on June 29, 2023, affecting Samsung Mobile Devices. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-25395?
CVE-2021-25395 has a CVSS v3 base score of 6.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2021-25395?
CVE-2021-25395 affects Samsung Mobile Devices. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2021-25395?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25395, 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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