What’s Vulnerable › Vulnerabilities

CVE-2022-32743

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-09-01 · updated 2026-06-17
• Weakness: CWE-276

Description

Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it.

Affected products

• Fedoraproject Fedora: 37
• Samba: from 4.1.0 before 4.17.0 — fixed in 4.17.0

How to fix

Upgrade to a fixed version: Samba 4.17.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.samba.org/show_bug.cgi?id=14833
• https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/5c578b15-d619-408d-ba17-380714b89fd1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTTOLTHUHOV4SHCHCB5TAA4FQVJAWN4P/
• https://security.gentoo.org/glsa/202309-06
• https://bugzilla.samba.org/show_bug.cgi?id=14833
• https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/5c578b15-d619-408d-ba17-380714b89fd1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTTOLTHUHOV4SHCHCB5TAA4FQVJAWN4P/
• https://security.gentoo.org/glsa/202309-06

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