CVE-2026-40210 — Out-of-bounds read in SetMacAddrAction

CVE-2026-40210

Out-of-bounds read in SetMacAddrAction PUBLISHED

Description (CNA)

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

Affected (CNA)

Vendor / product	Versions
PowerDNS / DNSdist	affected 1.9.0 before 1.9.15; affected 2.0.0 before 2.0.7

CWE

No CWE identifiers supplied.

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-09.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.