Description
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.
Affected products
fedoraproject: unbound; redhat: codeready linux builder; redhat: codeready linux builder eus; redhat: codeready linux builder eus for power little endian; redhat: codeready linux builder for arm64; redhat: codeready linux builder for arm64 eus; redhat: codeready linux builder for ibm z systems; redhat: codeready linux builder for ibm z systems eus; redhat: enterprise linux; redhat: enterprise linux eus; redhat: enterprise linux for arm 64; redhat: enterprise linux for arm 64 eus; redhat: enterprise linux for ibm z systems; redhat: enterprise linux for ibm z systems eus; redhat: enterprise linux for power little endian
References10
- bugzilla.redhat.com/show_bug.cgi?id=2264183 Issue TrackingPatch
- bugzilla.redhat.com/show_bug.cgi?id=2264183 Issue TrackingPatch
- access.redhat.com/errata/RHSA-2024:1750 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:1751 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:1780 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:1801 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:1802 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:1804 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:2587 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:2696 Third Party Advisory
Metrics
- CVSS 3.1
-
7.3
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H - EPSS — exploit probability
- 0% percentile: 25 · as of 5 November 2026
- CWE
- CWE-276
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