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CVE-2026-21385: Qualcomm Multiple Chipsets Memory Corruption Vulnerability

criticalknown exploitedCVE-2026-21385
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation.

CSIRTS triage

vendor: QualcommMemory corruption
What
The vulnerability involves memory corruption during memory allocation due to alignment issues.
Who is affected
Users of multiple Qualcomm chipsets are affected by this vulnerability.
Urgency
Immediate action is required due to active exploitation and critical severity.
Action
Update Qualcomm chipsets to the latest firmware to address this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-03-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-21385

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-21385coverage & exploitation statusNVD · CVE.org

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