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Status published
Low
CVE-2023-32726
Possible buffer overread from reading DNS responses
Vulnerability Description
The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This vulnerability is found by Philippe Antoine (catenacyber) from HackerOne community.
References
- https://support.zabbix.com/browse/ZBX-23855
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UMFKNV5E4LG2DIZNPRWQ2ENH75H6UEQT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BYSYLA7VTHR25CBLYO5ZLEJFGU7HTHQB/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00012.html
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Affected Vendor
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View all reports →Affected Software
Zabbix
Vulnerable Versions:
5.0.0, 6.0.0, 6.4.0, 7.0.0alpha1
Timeline
Official Publish:
December 18th, 2023
Last Modified:
November 3rd, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L