Security Digest · Vulnerability record · Known exploited
CVE-2026-21385: Qualcomm Multiple Chipsets Memory Corruption Vulnerability
Exploited in the wild (CISA KEV). Memory corruption while using alignments for memory allocation.
CISA KEV · added 2026-03-03 CVSS 7.8 High EPSS 1.3% · p70
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Qualcomm Multiple Chipsets. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-03-03, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-03-24; treat that as the outer limit, not the target.
- EPSS 1.3%, percentile 70: FIRST’s model estimates a 1.3% chance of exploitation activity in the next 30 days, higher than 70% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
What it is
Memory corruption while using alignments for memory allocation.
CISA’s summary
Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation.
Weakness type: CWE-190.
Product: Qualcomm Multiple Chipsets · Assigned by: qualcomm · Published: 2026-03-02
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Qualcomm, Inc. | Snapdragon | 5G Fixed Wireless Access Platform, APQ8098, AR8031, AR8035, C-V2X 9150, CSRA6620, CSRA6640, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| qualcomm | 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: local access needed
- Attack complexity: low
- Privileges required: low (any account)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2026-03-03; federal due date 2026-03-24. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 1.29% probability of exploitation activity in the next 30 days; percentile 70.
Timeline
- — CVE record published by qualcomm
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CVE record last updated
- — CISA remediation deadline for US federal agencies
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Listed in CISA KEV notes (source.android.com) source.android.com
Vulnerability records
- CVE.org record CVE-2026-21385 cve.org
- NVD entry CVE-2026-21385 nvd.nist.gov
Government
Other references from the CVE record and advisory
- docs.qualcomm.com docs.qualcomm.com
All exploited Qualcomm vulnerabilities · Today’s Security Digest