CVE-2026-77151

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77151", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-20T13:57:41.826Z", "datePublished": "2026-08-20T19:45:10.732Z", "dateUpdated": "2026-08-21T21:45:57.804Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-20T19:45:10.732Z"}, "title": "lin-snow Ech0 crypto.go MD5Encrypt risky encryption", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-327", "lang": "en", "description": "Risky Cryptographic Algorithm"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-310", "lang": "en", "description": "Cryptographic Issues"}]}], "affected": [{"vendor": "lin-snow", "product": "Ech0", "versions": [{"version": "5.4.0", "status": "affected"}, {"version": "5.4.1", "status": "affected"}, {"version": "5.4.2", "status": "unaffected"}], "cpes": ["cpe:2.3:a:lin-snow:ech0:*:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 6.3, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.7, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.7, "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 2.6, "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C"}}], "timeline": [{"time": "2026-08-20T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-08-20T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-08-20T16:03:16.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "summmm (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/393736", "name": "VDB-393736 | lin-snow Ech0 crypto.go MD5Encrypt risky encryption", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/393736/cti", "name": "VDB-393736 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-77151", "name": "CVE-2026-77151 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/881015", "name": "Submit #881015 | lin-snow Ech0 5.4.1 Unsalted MD5 Password Hashing in Ech0 Enables Mass Credential Cr", "tags": ["third-party-advisory"]}, {"url": "https://github.com/lin-snow/Ech0/issues/314", "tags": ["issue-tracking"]}, {"url": "https://github.com/lin-snow/Ech0/pull/315", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/lin-snow/Ech0/commit/9ce19a3b0d0765086a655f45d3a706ec1810404f", "tags": ["patch"]}, {"url": "https://github.com/lin-snow/Ech0/releases/tag/ech0-5.4.2", "tags": ["patch"]}, {"url": "https://github.com/lin-snow/Ech0/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202608"]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-21T21:40:02.592941Z", "id": "CVE-2026-77151", "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": "2026-08-21T21:45:57.804Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-77151", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T21:40:02.592941Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T21:40:17.051Z"}}], "cna": {"tags": ["x_open-source"], "title": "lin-snow Ech0 crypto.go MD5Encrypt risky encryption", "credits": [{"lang": "en", "type": "reporter", "value": "summmm (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.7, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.7, "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 2.6, "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C"}}], "affected": [{"cpes": ["cpe:2.3:a:lin-snow:ech0:*:*:*:*:*:*:*:*"], "vendor": "lin-snow", "product": "Ech0", "versions": [{"status": "affected", "version": "5.4.0"}, {"status": "affected", "version": "5.4.1"}, {"status": "unaffected", "version": "5.4.2"}]}], "timeline": [{"lang": "en", "time": "2026-08-20T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-08-20T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-08-20T16:03:16.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/vuln/393736", "name": "VDB-393736 | lin-snow Ech0 crypto.go MD5Encrypt risky encryption", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/393736/cti", "name": "VDB-393736 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-77151", "name": "CVE-2026-77151 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/881015", "name": "Submit #881015 | lin-snow Ech0 5.4.1 Unsalted MD5 Password Hashing in Ech0 Enables Mass Credential Cr", "tags": ["third-party-advisory"]}, {"url": "https://github.com/lin-snow/Ech0/issues/314", "tags": ["issue-tracking"]}, {"url": "https://github.com/lin-snow/Ech0/pull/315", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/lin-snow/Ech0/commit/9ce19a3b0d0765086a655f45d3a706ec1810404f", "tags": ["patch"]}, {"url": "https://github.com/lin-snow/Ech0/releases/tag/ech0-5.4.2", "tags": ["patch"]}, {"url": "https://github.com/lin-snow/Ech0/", "tags": ["product"]}], "x_generator": ["VulDB PVTS v202608"], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-327", "description": "Risky Cryptographic Algorithm"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-310", "description": "Cryptographic Issues"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-20T19:45:10.732Z"}}}, "cveMetadata": {"cveId": "CVE-2026-77151", "state": "PUBLISHED", "dateUpdated": "2026-08-21T21:45:57.804Z", "dateReserved": "2026-08-20T13:57:41.826Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-08-20T19:45:10.732Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:lin-snow:ech0:*:*:*:*:*:*:*:*"], "product": "Ech0", "vendor": "lin-snow", "versions": [{"status": "affected", "version": "5.4.0"}, {"status": "affected", "version": "5.4.1"}, {"status": "unaffected", "version": "5.4.2"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component."}, {"lang": "es", "value": "Se ha descubierto una falla de seguridad en lin-snow Ech0 hasta la versi\u00f3n 5.4.1. Afectada por este problema es la funci\u00f3n MD5Encrypt del archivo internal/util/crypto/crypto.go. Realizar una manipulaci\u00f3n resulta en un algoritmo criptogr\u00e1fico arriesgado. La explotaci\u00f3n remota del ataque es posible. La complejidad de un ataque es bastante alta. Se sabe que la explotaci\u00f3n es dif\u00edcil. Actualizar a la versi\u00f3n 5.4.2 puede resolver este problema. El parche se llama 9ce19a3b0d0765086a655f45d3a706ec1810404f. Se recomienda actualizar el componente afectado."}], "id": "CVE-2026-77151", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "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:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77151", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T21:40:02.592941Z", "version": "2.0.3"}}]}, "published": "2026-08-20T20:17:47.253", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/lin-snow/Ech0/"}, {"source": "cna@vuldb.com", "url": "https://github.com/lin-snow/Ech0/commit/9ce19a3b0d0765086a655f45d3a706ec1810404f"}, {"source": "cna@vuldb.com", "url": "https://github.com/lin-snow/Ech0/issues/314"}, {"source": "cna@vuldb.com", "url": "https://github.com/lin-snow/Ech0/pull/315"}, {"source": "cna@vuldb.com", "url": "https://github.com/lin-snow/Ech0/releases/tag/ech0-5.4.2"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-77151"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/881015"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/393736"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/393736/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-310"}, {"lang": "en", "value": "CWE-327"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.4.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.4.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "5.4.2"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Ech0", "source": "cna", "vendor": "lin-snow"}, "product": "ech0", "vendor": "lin-snow"}], "created": "2026-08-20T22:00:05.597534+00:00", "updated": "2026-08-21T02:00:05.421479+00:00", "vendors": ["lin-snow", "lin-snow$PRODUCT$ech0"]}