CVE catalog

CVE-2024-1488

unbound: CVE-2024-1488

Severity: High · CVSS 8CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Published: Feb 13, 2024, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 25, 2026

A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound group to modify the unbound runtime configuration. If a process can connect over localhost to port 8953, it can alter the configuration of unbound.service. This flaw allows an unprivileged attacker to manipulate a running instance, potentially altering forwarders, allowing them to track all queries forwarded by the local resolver, and, in some cases, disrupting resolving altogether.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	unbound	sid	`1.26.2-1`	not affected
Debian	unbound	forky	`1.26.2-1`	not affected
Debian	unbound	trixie	`1.22.0-2+deb13u3`	not affected
Debian	unbound	trixie-security	`1.26.2-0+deb13u1`	not affected
Debian	unbound	bookworm	`1.17.1-2+deb12u4`	not affected
Debian	unbound	bookworm-security	`1.17.1-2+deb12u3`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	unbound	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	unbound	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	unbound	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	unbound	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]