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
29%
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 45× in last 7d / 245× 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 506 total refreshes for this CVE.

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

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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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