{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-8677","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","state":"PUBLISHED","assignerShortName":"isc","dateReserved":"2025-08-06T17:32:34.755Z","datePublished":"2025-10-22T15:43:10.369Z","dateUpdated":"2025-11-04T21:15:09.556Z"},"containers":{"cna":{"providerMetadata":{"orgId":"404fd4d2-a609-4245-b543-2c944a302a22","shortName":"isc","dateUpdated":"2025-10-22T15:43:10.369Z"},"title":"Resource exhaustion via malformed DNSKEY handling","datePublic":"2025-10-22T00:00:00.000Z","affected":[{"vendor":"ISC","product":"BIND 9","versions":[{"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":"9.18.11-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":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-405","description":"CWE-405 Asymmetric Resource Consumption (Amplification)"}]}],"descriptions":[{"lang":"en","value":"Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1."}],"impacts":[{"descriptions":[{"lang":"en","value":"An attacker could overwhelm the server, significantly impacting performance and leading to denial of service for legitimate clients."}]}],"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 Zuyao Xu and Xiang Li from the All-in-One Security and Privacy Laboratory at Nankai University for bringing this vulnerability to our attention."}],"references":[{"url":"https://kb.isc.org/docs/cve-2025-8677","name":"CVE-2025-8677","tags":["vendor-advisory"]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-22T17:29:14.290863Z","id":"CVE-2025-8677","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-22T17:29:39.128Z"}},{"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":"2025-11-04T21:15:09.556Z"}}]}}