{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-11678","assignerOrgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","state":"PUBLISHED","assignerShortName":"Nozomi","dateReserved":"2025-10-13T09:56:39.308Z","datePublished":"2025-10-20T13:51:17.328Z","dateUpdated":"2025-10-20T14:00:37.720Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://libwebsockets.org/git/libwebsockets","defaultStatus":"unaffected","modules":["lws_adns_parse_label"],"product":"libwebsocket","vendor":"warmcat","versions":[{"lessThanOrEqual":"4.4.2","status":"affected","version":"4.0","versionType":"semver"},{"lessThanOrEqual":"4.3.6","status":"affected","version":"4.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Raffaele Bova at Nozomi Networks"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum."}],"value":"Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum."}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":7.5,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","shortName":"Nozomi","dateUpdated":"2025-10-20T13:51:17.328Z"},"references":[{"tags":["patch","vendor-advisory"],"url":"https://libwebsockets.org/git/libwebsockets/commit?id=2bb9598562b37c942ba5b04bcde3f7fdf66a9d3a"},{"tags":["third-party-advisory"],"url":"https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11678"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Update the library to its latest stable release, if not possible backport the fix commit 2bb9598562b37c942ba5b04bcde3f7fdf66a9d3a"}],"value":"Update the library to its latest stable release, if not possible backport the fix commit 2bb9598562b37c942ba5b04bcde3f7fdf66a9d3a"}],"source":{"discovery":"EXTERNAL"},"title":"Stack-based Buffer Overflow in libwebsockets DNS response parsing","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-20T14:00:20.705552Z","id":"CVE-2025-11678","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-20T14:00:37.720Z"}}]}}