CVE-2026-40210

Publication date 25 June 2026

Last updated 29 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being sent over the network or a crash.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
dnsdist	26.04 LTS resolute	Needs evaluation
	25.10 questing	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation

Severity score breakdown

CVSS version: CVSS v3.0

Base score 4.8 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	4.8 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

CVE-2026-40210

Cvss 3 Severity Score

Description

Status

Severity score breakdown

References

Other references

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