PT-2026-139854

CVE-2026-123573

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Published

2026-11-08

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Updated

2026-11-08

Description by

CVSS 3.1
7.5
High
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
hickory-dns from 0.20.1 before 0.26.2 contains a denial of service vulnerability in the hickory-proto SVCB and HTTPS record presentation format parser. Attackers can supply untrusted zone files where only a single or double quote replaces a service parameter value, triggering a panic that crashes the parsing process.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-20: Improper Input Validation
Related identifiers
CVE-2026-123573
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