{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-11679","assignerOrgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","state":"PUBLISHED","assignerShortName":"Nozomi","dateReserved":"2025-10-13T09:56:49.533Z","datePublished":"2025-10-20T13:58:31.286Z","dateUpdated":"2025-10-20T14:03:41.592Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://libwebsockets.org/git/libwebsockets","defaultStatus":"unaffected","modules":["lws_upng_emit_next_line"],"product":"libwebsockets","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":"Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension."}],"value":"Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension."}],"impacts":[{"capecId":"CAPEC-540","descriptions":[{"lang":"en","value":"CAPEC-540 Overread Buffers"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","shortName":"Nozomi","dateUpdated":"2025-10-20T13:58:31.286Z"},"references":[{"tags":["patch","vendor-advisory"],"url":"https://libwebsockets.org/git/libwebsockets/commit?id=7df24cca7144d7bc9233b6b0a71108bd154ce101"},{"tags":["third-party-advisory"],"url":"https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11679"}],"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 7df24cca7144d7bc9233b6b0a71108bd154ce101"}],"value":"Update the library to its latest stable release, if not possible backport the fix commit 7df24cca7144d7bc9233b6b0a71108bd154ce101"}],"source":{"discovery":"EXTERNAL"},"title":"Out-of-bounds Read in libwebsockets PNG parsing","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-20T14:02:56.942722Z","id":"CVE-2025-11679","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2025-10-20T14:03:41.592Z"}}]}}