CVE-2021-25370

CRITICALNVD 6.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-11-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.1 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: 1%CVSS: 6.1Exploit: cisa kev · ssvc activeExposed: 0

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

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

CVSS v3
6.1
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
1%
EPSS %ILE
57%
KEV
⚠ Exploited

Published

March 26, 2021

Last Modified

January 14, 2026

Advisory Details (3)

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-2021-25370
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb
generic
https://security.samsungmobile.com

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 58× in last 7d / 249× 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 701 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2021-25370?
CVE-2021-25370 is a critical vulnerability published on March 26, 2021. An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.
When was CVE-2021-25370 disclosed?
CVE-2021-25370 was first published in the National Vulnerability Database on March 26, 2021, with the most recent update on January 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-25370 actively exploited?
Yes. CISA added CVE-2021-25370 to the Known Exploited Vulnerabilities catalog on November 8, 2022, 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-2021-25370?
CVE-2021-25370 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2021-25370?
CVE-2021-25370 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-2021-25370?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25370, 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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