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
61%
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 16× in last 7d / 16× 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. 2026-07-28 22:52 UTCGHSA enrichment
  2. 2026-07-28 18:39 UTCEG score recompute
  3. 2026-07-28 18:39 UTCGHSA enrichment
  4. 2026-07-28 14:25 UTCGHSA enrichment
  5. 2026-07-28 10:11 UTCGHSA enrichment
  6. 2026-07-28 05:58 UTCGHSA enrichment
  7. 2026-07-28 01:44 UTCGHSA enrichment
  8. 2026-07-27 21:31 UTCEG score recompute
  9. 2026-07-27 21:31 UTCGHSA enrichment
  10. 2026-07-27 19:24 UTCCISA KEV update
  11. 2026-07-27 17:17 UTCEG score recompute▲ 1.20
  12. 2026-07-27 17:17 UTCGHSA enrichment
  13. 2026-07-27 17:17 UTCCISA KEV update
  14. 2026-07-27 14:13 UTCEPSS rescore
  15. 2026-07-27 13:59 UTCEG score recompute
  16. 2026-07-27 13:58 UTCGHSA enrichment

Related CVEs(same CWE)

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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21385

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