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NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
The severity is increased for this new vulnerability affecting Red Hat Enterprise Linux (CVE-2026-61477) https://vuldb.com/vuln/387014
Post summary
The post announces a severity increase for CVE-2026-61477 on Red Hat Enterprise Linux, providing a brief disclosure without additional technical, exploit, or mitigation details.