CVE-2026-40210: Buffer Over-read in PowerDNS DNSdist
An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being sent over the network or a crash.
CVE-2026-40210: Buffer Over-read in PowerDNS DNSdist
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.
CVSS v3.1
Score 4.8medium
Affected software
pkg:github/dnsdistRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-04-10T07:11:39.060Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3d2a1b4853345fc1f848f9
Added to database: 06/25/2026, 13:16:11 UTC
Last updated: 06/25/2026, 13:16:11 UTC
Views: 1
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