CVE-2026-12617
Several vulnerabilities were discovered in BIND, a DNS server implementation, which may result in bypass of DNSSEC validation, RPZ policy bypass, cache poisoning or denial of service. https://security-tracker.debian.org/tracker/DSA-6395-1
CSIRTS triage
- What
- Several vulnerabilities in BIND may lead to DNSSEC validation bypass, cache poisoning, and denial of service.
- Who is affected
- Deployments of BIND DNS server.
- Urgency
- Remediation is necessary to prevent potential exploitation and service disruption.
- Action
- Update to the latest version of BIND to address these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-12617
Get an email if CVE-2026-12617 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Advisory coverage (4)
- high[NEW] [high] Internet Systems Consortium BIND: Multiple vulnerabilitiescert-bund · 2026-07-31
- highCVE-2026-12617: The issue is unexpected program termination based on ordering and/or specific content in respo…nvd · 2026-07-22
- unknownDSA-6395-1 bind9 - security updatedebian · 2026-07-22
- highCVE-2026-12617: Record ordering based unexpected exit with CNAME or DNAMEmsrc · 2026-07-14
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-12617)