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CVE-2022-50407: crypto: hisilicon/qm - increase the memory of local variables

mediumCVSS 5.5CVE-2022-50407

CSIRTS triage

product: Linux kernel (crypto: hisilicon/qm driver)Memory corruption
What
Local variable memory allocation issue in the HiSilicon QM crypto driver that could lead to information disclosure or memory corruption.
Who is affected
Linux systems using HiSilicon quantum hardware acceleration for cryptographic operations.
Urgency
Medium; CVSS 5.5 with local access requirement only.
Action
Update to a patched Linux kernel version that increases local variable memory allocation in the hisilicon/qm driver.

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

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-50407

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-2022-50407coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for crypto

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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