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CVE-2021-1905: Qualcomm Multiple Chipsets Use-After-Free Vulnerability

criticalknown exploitedpublic exploitCVE-2021-1905
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 use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.

CSIRTS triage

vendor: QualcommMemory corruption
What
A use-after-free vulnerability due to improper memory handling can lead to exploitation.
Who is affected
Devices using affected Qualcomm chipsets.
Urgency
Remediation is urgent as the vulnerability is actively exploited and critical.
Action
Update firmware or software for devices using Qualcomm chipsets.

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

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-1905

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-2021-1905coverage & exploitation statusNVD · CVE.org

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