{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40778","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","state":"PUBLISHED","assignerShortName":"isc","dateReserved":"2025-04-16T08:44:49.857Z","datePublished":"2025-10-22T15:47:13.243Z","dateUpdated":"2026-02-26T16:57:13.134Z"},"containers":{"cna":{"providerMetadata":{"orgId":"404fd4d2-a609-4245-b543-2c944a302a22","shortName":"isc","dateUpdated":"2025-10-22T15:47:13.243Z"},"title":"Cache poisoning attacks with unsolicited RRs","datePublic":"2025-10-22T00:00:00.000Z","affected":[{"vendor":"ISC","product":"BIND 9","versions":[{"version":"9.11.0","lessThanOrEqual":"9.16.50","status":"affected","versionType":"custom"},{"version":"9.18.0","lessThanOrEqual":"9.18.39","status":"affected","versionType":"custom"},{"version":"9.20.0","lessThanOrEqual":"9.20.13","status":"affected","versionType":"custom"},{"version":"9.21.0","lessThanOrEqual":"9.21.12","status":"affected","versionType":"custom"},{"version":"9.11.3-S1","lessThanOrEqual":"9.16.50-S1","status":"affected","versionType":"custom"},{"version":"9.18.11-S1","lessThanOrEqual":"9.18.39-S1","status":"affected","versionType":"custom"},{"version":"9.20.9-S1","lessThanOrEqual":"9.20.13-S1","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","baseScore":8.6,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-349","description":"CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data"}]}],"descriptions":[{"lang":"en","value":"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 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."}],"impacts":[{"descriptions":[{"lang":"en","value":"Forged records can be injected into cache during a query, which can potentially affect resolution of future queries."}]}],"workarounds":[{"lang":"en","value":"No workarounds known."}],"exploits":[{"lang":"en","value":"We are not aware of any active exploits."}],"solutions":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.41, 9.20.15, 9.21.14, 9.18.41-S1, or 9.20.15-S1."}],"credits":[{"lang":"en","value":"ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention."}],"references":[{"url":"https://kb.isc.org/docs/cve-2025-40778","name":"CVE-2025-40778","tags":["vendor-advisory"]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-40778","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-11-07T04:56:12.747619Z"}}}],"references":[{"url":"https://gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918","tags":["exploit"]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-26T16:57:13.134Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2025/10/22/1"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-04T21:10:14.114Z"}}]}}