{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27520", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-19T19:51:07.329Z", "datePublished": "2026-02-24T15:07:41.085Z", "dateUpdated": "2026-02-26T21:28:10.307Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "10G08-0800GSM Network Switch", "vendor": "Binardat Ltd.", "versions": [{"lessThan": "V300SP10260209", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Binardat 10G08-0800GSM network switch firmware versions prior to&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">V300SP10260209</span>&nbsp;store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password."}], "value": "Binardat 10G08-0800GSM network switch firmware versions prior to\u00a0V300SP10260209\u00a0store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "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:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-312", "description": "CWE-312 Cleartext Storage of Sensitive Information", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-02-24T15:07:41.085Z"}, "references": [{"tags": ["product"], "url": "https://www.binardat.com/products/8-port-10-gigabit-sfp-managed-switch,-support-1g-sfp-and-10g-sfp-module,-160gbps-bandwidth,-l3-web-managed,-metal-fanless-fiber-binardat-network-switch"}, {"tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/binardat-10g08-0800gsm-network-switch-base64-encoded-password-stored-in-cookie"}], "source": {"discovery": "EXTERNAL"}, "title": "Binardat 10G08-0800GSM Network Switch Base64-encoded Password Stored in Cookie", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-26T21:27:32.671892Z", "id": "CVE-2026-27520", "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": "2026-02-26T21:28:10.307Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-27520", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-26T21:27:32.671892Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-26T21:27:57.186Z"}}], "cna": {"title": "Binardat 10G08-0800GSM Network Switch Base64-encoded Password Stored in Cookie", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc."}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Binardat Ltd.", "product": "10G08-0800GSM Network Switch", "versions": [{"status": "affected", "version": "0", "lessThan": "V300SP10260209", "versionType": "custom"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.binardat.com/products/8-port-10-gigabit-sfp-managed-switch,-support-1g-sfp-and-10g-sfp-module,-160gbps-bandwidth,-l3-web-managed,-metal-fanless-fiber-binardat-network-switch", "tags": ["product"]}, {"url": "https://www.vulncheck.com/advisories/binardat-10g08-0800gsm-network-switch-base64-encoded-password-stored-in-cookie", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "Binardat 10G08-0800GSM network switch firmware versions prior to\u00a0V300SP10260209\u00a0store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password.", "supportingMedia": [{"type": "text/html", "value": "Binardat 10G08-0800GSM network switch firmware versions prior to&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">V300SP10260209</span>&nbsp;store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-312", "description": "CWE-312 Cleartext Storage of Sensitive Information"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-02-24T15:07:41.085Z"}}}, "cveMetadata": {"cveId": "CVE-2026-27520", "state": "PUBLISHED", "dateUpdated": "2026-02-26T21:28:10.307Z", "dateReserved": "2026-02-19T19:51:07.329Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-02-24T15:07:41.085Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:binardat:10g08-0800gsm_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "BB8E3245-044C-496C-9521-04CE9E097A74", "versionEndIncluding": "V300SP10260209", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:binardat:10g08-0800gsm:-:*:*:*:*:*:*:*", "matchCriteriaId": "466EE3BA-33F8-476B-A66B-02FC3B93CB00", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Binardat 10G08-0800GSM network switch firmware versions prior to\u00a0V300SP10260209\u00a0store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password."}], "id": "CVE-2026-27520", "lastModified": "2026-02-25T17:25:34.370", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "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:L/AT:N/PR:N/UI:N/VC:H/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": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-02-24T16:24:09.813", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://www.binardat.com/products/8-port-10-gigabit-sfp-managed-switch,-support-1g-sfp-and-10g-sfp-module,-160gbps-bandwidth,-l3-web-managed,-metal-fanless-fiber-binardat-network-switch"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/binardat-10g08-0800gsm-network-switch-base64-encoded-password-stored-in-cookie"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-312"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,V300SP10260209)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "10G08-0800GSM Network Switch", "source": "cna", "vendor": "Binardat Ltd."}, "product": "10g08-0800gsm_network_switch", "vendor": "binardat"}], "analysis": {"en": {"generated_at": "2026-04-18T10:53:55.864013+00:00", "value": {"mitigation_remediation": ["Upgrade the switch firmware to version V300SP10260209 or later to eliminate the storage of passwords in cookies.", "Restrict access to the web management interface by firewall, VPN, or network segmentation so that only trusted administrators can reach it.", "If an upgrade is not immediately possible, remove or block the cookie after login using a browser extension or manual deletion, and ensure password values are not stored client\u2011side."], "summary": {"action": "Patch Now", "impact": "Unauthorized Credential Disclosure"}, "threat_synthesis": {"affected_systems": "Binardat Ltd. 10G08\u20110800GSM Network Switch, firmware versions prior to V300SP10260209, accessed through the web management interface. Only these early firmware releases are affected.", "description_and_impact": "The firmware of the Binardat 10G08\u20110800GSM network switch stores user passwords in a client\u2011side cookie encoded with Base64, which provides no confidentiality. Because Base64 is directly reversible, an attacker who can read the cookie value can recover the plaintext password and gain unauthorized access to the switch. This flaw exposes privileged credentials and could enable broader compromise of the network infrastructure.", "risk_and_exploitability": "The vulnerability scores a CVSS of 8.7 and an EPSS of less than 1\u202f%, and it is not listed in the CISA KEV catalog. Based on the description, it is inferred that attackers could obtain the client\u2011side cookie through direct web interface access, network traffic interception, or client\u2011side compromise, which would allow them to extract the stored password. The flaw is remotely exploitable via the web interface when the attacker has access to the user's browser environment."}}}}, "created": "2026-02-25T11:38:47.309260+00:00", "updated": "2026-04-18T11:00:05.743818+00:00", "vendors": ["binardat", "binardat$PRODUCT$10g08-0800gsm_network_switch"]}