CVE-2026-61477
LOWlibvirt Virtual Network DNS Records - Root Command Execution via Dnsmasq Injection
Title source: manualDescription
An injection vulnerability was found in libvirt's virtual network driver. The network XML parser does not strip newline characters from DNS TXT record value attributes and SRV record domain/target attributes. These values are written verbatim into the dnsmasq configuration file generated by the network driver, allowing a user with permission to define virtual networks to inject arbitrary dnsmasq configuration directives such as dhcp-script, leading to arbitrary command execution as root.
References (3)
Core 3
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-61477
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2512066
https://bugzilla.redhat.com/show_bug.cgi?id=2512066
Scores
CVSS v3
2.3
EPSS
0.0024
EPSS Percentile
15.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-93
Status
published
Products (6)
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat Enterprise Linux for NVIDIA 26
Published
Aug 07, 2026
Tracked Since
Aug 07, 2026