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CVE-2026-21385

Qualcomm Multiple Chipsets Memory Corruption

7.8 HIGHActively exploited (CISA KEV)EPSS 1.26%
  1. Published2 Mar 2026
  2. Added to CISA KEV3 Mar 2026
  3. Remediation due24 Mar 2026
Actively exploited (CISA KEV)

Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation.

Added to KEV: 3 Mar 2026Federal remediation due: 24 Mar 2026

Description

Memory corruption while using alignments for memory allocation.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Qualcomm 5g Fixed Wireless Access Platform Firmwareall versions
Qualcomm Apq8098 Firmwareall versions
Qualcomm Ar8031 Firmwareall versions
Qualcomm Ar8035 Firmwareall versions
Qualcomm Csra6620 Firmwareall versions
Qualcomm Csra6640 Firmwareall versions
Qualcomm C-v2x 9150 Firmwareall versions
Qualcomm Fastconnect 6200 Firmwareall versions
Qualcomm Fastconnect 6700 Firmwareall versions
Qualcomm Fastconnect 6800 Firmwareall versions
Qualcomm Fastconnect 6900 Firmwareall versions
Qualcomm Fastconnect 7800 Firmwareall versions
Qualcomm Flight Rb5 5g Platform Firmwareall versions
Qualcomm Fsm100 Platform Firmwareall versions
Qualcomm G1 Gen 1 Firmwareall versions
Qualcomm G2 Gen 1 Firmwareall versions
Qualcomm Iq-615 Firmwareall versions
Qualcomm Iq-8275 Firmwareall versions
Qualcomm Iq-8300 Firmwareall versions
Qualcomm Iq-9075 Firmwareall versions
Qualcomm Iq-9100 Firmwareall versions
Qualcomm Lemansau Firmwareall versions
Qualcomm Lemans Au Lgit Firmwareall versions
Qualcomm Mdm9250 Firmwareall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-21385 being actively exploited?

Yes. CVE-2026-21385 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Mar 2026.

How severe is CVE-2026-21385?

CVE-2026-21385 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 1.26% probability of exploitation.

Which products are affected by CVE-2026-21385?

Affected products include Qualcomm 5g Fixed Wireless Access Platform Firmware, Qualcomm Apq8098 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, and 19 more.

How do I fix CVE-2026-21385?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-21385 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.