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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-61477

An injection vulnerability was found in libvirt's virtual network driver.

LOW 2.3EPSS 0.16%

Does this matter?

Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1
2.3 LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
EPSS
0.16% probability · 6th percentile
CISA KEV
Not listed
Weakness
CWE-93
Source
secalert@redhat.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.