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CVE-2026-61477

2.3 · LOW

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

Published Aug 7, 2026CWE-93EPSS 0.16%

Overview

CVE-2026-61477 is a low-severity vulnerability. It was published on August 7, 2026 and has a CVSS 3.1 base score of 2.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/security/cve/CVE-2026-61477Refbugzilla.redhat.com/show_bug.cgi?id=2512066Refgitlab.com/libvirt/libvirt/-/commit/3cfc77963b512d809348fca07f97fe924fac9a05

How CyberStrike helps

Frequently asked questions

What is CVE-2026-61477?

CVE-2026-61477 is a low-severity vulnerability. It was published on August 7, 2026 and has a CVSS 3.1 base score of 2.3 (LOW).

How severe is CVE-2026-61477?

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-61477?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-61477?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-61477 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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