CVE intelligence

CVE-2026-61477

Vulnerability intelligence

Published Aug 7, 2026Sources checked Oct 28, 2026

2.3LOWCVSS out of 10

What this means

Review the available evidence

CVE-2026-61477 and is rated Low severity with a CVSS score of 2.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Aug 23, 2026

CBL-Mariner Releases

Vendor-listed releases

10.10.0-3

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-61477?

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.

Source: NVD