Security Advisory

CVE-2025-40775

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-05-21 12:35:01

Last updated 2025-05-23 13:11:08

Assigner isc

State PUBLISHED

Description

When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the TSIG contains an invalid value in the algorithm field, BIND immediately aborts with an assertion failure. This issue affects BIND 9 versions 9.20.0 through 9.20.8 and 9.21.0 through 9.21.7.

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