Ubuntu Security NoticesUSN-8742-1

USN-8742-1: Netty vulnerability

It was discovered that Netty incorrectly validates the bailiwick of NS records. An attacker could possibly use this issue to facilitate DNS cache poisoning attacks.

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Not listedCVSS not listedNot listed severity

Scope

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Timeline

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Sep 10, 2026 at 9:01 AM UTC
Published by Ubuntu
The publication date reported by the vendor.
Sep 10, 2026 at 9:10 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 13, 2026 at 4:50 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Source

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Vendor: Ubuntu
Advisory ID: USN-8742-1
Last source check: Sep 13, 2026 at 4:50 AM UTC

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What the vendor says is affected

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