{"id":"CVE-2025-40778","title":"Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 th…","summary":"Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 th…","severity":"high","cvss":8.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","cwe":["CWE-349"],"published":"2025-10-22","updated":"2026-10-08","sourceUpdated":"2026-10-08T11:10:00.250","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40778","references":[{"url":"https://kb.isc.org/docs/cve-2025-40778","label":"security-officer@isc.org"},{"url":"http://www.openwall.com/lists/oss-security/2025/10/22/1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","exploit-available"],"epss":0.00667,"epssPercentile":0.50326,"exploits":{"github":3,"githubRepos":["https://github.com/nehkark/CVE-2025-40778","https://github.com/nicholasC03/DNS-Poisoning-Triage-Lab","https://github.com/sirbuvladste/BIND-9-Cache-Poisoning-PoC---CVE-2025-40778"],"checkedAt":"2026-10-08T11:32:03.418Z"},"exploitAvailable":true,"ingestedAt":"2026-10-08T11:31:27.547Z","slug":"CVE-2025-40778","body":"## Overview\n\nUnder certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":59,"depthScoreParts":{"impact":47.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}