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Security Advisories

CVE-2025-40776

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-40776

Severity

8.6

High

CVSS V3

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Description

A named caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-40776
  • https://github.com/advisories/GHSA-2hm8-9847-q7gc
  • https://kb.isc.org/docs/cve-2025-40776

Affected packages

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