What’s Vulnerable › Vulnerabilities

CVE-2021-3947

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-18 · updated 2026-06-17
• Weakness: CWE-125

Description

A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.

Affected products

• QEMU: from 6.0.0 through 6.1.0; 6.2.0-rc0, 6.2.0-rc1

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2021869
• https://security.gentoo.org/glsa/202208-27
• https://security.netapp.com/advisory/ntap-20220318-0003/
• https://bugzilla.redhat.com/show_bug.cgi?id=2021869
• https://security.gentoo.org/glsa/202208-27
• https://security.netapp.com/advisory/ntap-20220318-0003/

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