CVE-2026-5172
An attacker can exploit multiple vulnerabilities in dnsmasq to cause a denial-of-service condition, execute arbitrary code with root privileges, disclose confidential information, manipulate data, and redirect users to malicious domains.
CSIRTS triage
- What
- Multiple vulnerabilities can cause denial of service, execute arbitrary code, disclose information, and manipulate data.
- Who is affected
- Deployments of dnsmasq.
- Urgency
- Remediation is urgent due to the high severity and potential for exploitation.
- Action
- Update to the latest version of dnsmasq.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.93% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.
Advisory coverage (1)
- high[UPDATE] [high] dnsmasq: Multiple vulnerabilitiescert-bund · 2026-07-07
External references
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[](https://www.csirts.com/cve/CVE-2026-5172)