Analytical use of cookies
CVE-2026-3593: bind vulnerability
CVE-2026-3593: high vulnerability affecting bind. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 7.4 HIGH
- EPSS
- 76.8%
- Known exploited
- not in KEV
- Product
- bind
What is known
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.
Business impact
Successful exploitation of CVE-2026-3593, a high vulnerability (CVSS 7.4) affecting bind, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether bind is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.