CVE-2026-21385

CRITICALPre-NVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-03-03), indicating real-world exploitation has been confirmed by US federal agencies. a secondary CVSS source baseline 7.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
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: 7.8Exploit: cisa kevExposed: 0

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

Memory corruption while using alignments for memory allocation.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
85(Attend)
EG Risk 85/100SSVC: 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%
Automatability30% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
69%
KEV
⚠ Exploited

Published

March 2, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jul 27, 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-2026-21385
generic

Android Security Bulletin—March 2026  |  Android Open Source Project

https://source.android.com/docs/security/bulletin/2026/2026-03-01
generic

Qualcomm Documentation

https://docs.qualcomm.com/product/publicresources/securitybulletin/march-2026-bulletin.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 55× in last 7d / 236× 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 438 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2026-21385?
CVE-2026-21385 is a critical vulnerability published on March 2, 2026. Memory corruption while using alignments for memory allocation.
When was CVE-2026-21385 disclosed?
CVE-2026-21385 was first published in the National Vulnerability Database on March 2, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21385 actively exploited?
Yes. CISA added CVE-2026-21385 to the Known Exploited Vulnerabilities catalog on March 3, 2026, affecting Qualcomm Multiple Chipsets. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-21385?
CVE-2026-21385 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2026-21385?
CVE-2026-21385 affects Qualcomm Multiple Chipsets. 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-2026-21385?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21385, 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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