Out-of-bounds Write Affecting dnsmasq package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.63% (51st percentile)

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  • Snyk IDSNYK-ECHOLATEST-DNSMASQ-21884654
  • published30 Oct 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-93011  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest dnsmasq.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnsmasq package and not the dnsmasq package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in dnsmasq. After a reduction of internal domain-name buffer sizes, the DNSSEC validator can write a few bytes past a name buffer when converting names to and from DNS wire format. An attacker who can cause the server to validate a crafted DNSSEC response may overwrite a small amount of adjacent heap metadata. DNSSEC support is not compiled in by default and must also be enabled at runtime.

CVSS Base Scores

version 3.1