{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78161", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-23T11:53:19.761Z", "datePublished": "2026-08-24T00:45:08.842Z", "dateUpdated": "2026-08-24T00:45:08.842Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-24T00:45:08.842Z"}, "title": "warmcat libwebsockets LECP CBOR Recording lecp.c report_raw_cbor out-of-bounds write", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "Out-of-bounds Write"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "warmcat", "product": "libwebsockets", "versions": [{"version": "4.5.0", "status": "affected"}], "cpes": ["cpe:2.3:a:warmcat:libwebsockets:*:*:*:*:*:*:*:*"], "modules": ["LECP CBOR Recording"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording. The manipulation results in out-of-bounds write. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as 1d44554a1bb262db63ff4e240152a9deecd99054. It is best practice to apply a patch to resolve this issue."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 7.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "HIGH"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 7.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "HIGH"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C"}}], "timeline": [{"time": "2026-08-23T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-08-23T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-08-23T13:58:25.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "biniam (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/394543", "name": "VDB-394543 | warmcat libwebsockets LECP CBOR Recording lecp.c report_raw_cbor out-of-bounds write", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/394543/cti", "name": "VDB-394543 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-78161", "name": "CVE-2026-78161 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/883225", "name": "Submit #883225 | warmcat libwebsockets 4.5.99-v4.5.0-508-gb4b5aed39 Out-of-bounds Write", "tags": ["third-party-advisory"]}, {"url": "https://github.com/biniamf/pocs/tree/main/libwebsockets-lecp-lecp_parse-cbor_pos_oob_write", "tags": ["exploit"]}, {"url": "https://github.com/biniamf/pocs/blob/main/libwebsockets-lecp-lecp_parse-cbor_pos_oob_write/poc_lecp_cbor_pos_oob.c", "tags": ["exploit"]}, {"url": "https://github.com/warmcat/libwebsockets/commit/1d44554a1bb262db63ff4e240152a9deecd99054", "tags": ["patch"]}, {"url": "https://github.com/warmcat/libwebsockets/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202608"]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:warmcat:libwebsockets:*:*:*:*:*:*:*:*"], "modules": ["LECP CBOR Recording"], "product": "libwebsockets", "vendor": "warmcat", "versions": [{"status": "affected", "version": "4.5.0"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording. The manipulation results in out-of-bounds write. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as 1d44554a1bb262db63ff4e240152a9deecd99054. It is best practice to apply a patch to resolve this issue."}], "id": "CVE-2026-78161", "lastModified": "2026-08-24T01:16:57.360", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-08-24T01:16:57.360", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/biniamf/pocs/blob/main/libwebsockets-lecp-lecp_parse-cbor_pos_oob_write/poc_lecp_cbor_pos_oob.c"}, {"source": "cna@vuldb.com", "url": "https://github.com/biniamf/pocs/tree/main/libwebsockets-lecp-lecp_parse-cbor_pos_oob_write"}, {"source": "cna@vuldb.com", "url": "https://github.com/warmcat/libwebsockets/"}, {"source": "cna@vuldb.com", "url": "https://github.com/warmcat/libwebsockets/commit/1d44554a1bb262db63ff4e240152a9deecd99054"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-78161"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/883225"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/394543"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/394543/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-787"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{}