CVE-2026-5215

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The impacted element is the function cgi_get_ipv6 of the file /cgi-bin/network_mgr.cgi. Such manipulation leads to improper access controls. The exploit is publicly available and might be used."}, {"lang": "es", "value": "Una vulnerabilidad fue identificada en D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 y DNS-1550-04 hasta 20260205. El elemento afectado es la funci\u00f3n cgi_get_ipv6 del archivo /cgi-bin/network_mgr.cgi. Dicha manipulaci\u00f3n conduce a controles de acceso inadecuados. El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado."}], "id": "CVE-2026-5215", "lastModified": "2026-06-17T10:58:37.893", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 3.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "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:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5215", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T18:46:15.471970Z", "version": "2.0.3"}}]}, "published": "2026-03-31T22:16:22.820", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.md"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/submit/780440"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/354351"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/vuln/354351/cti"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.dlink.com/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-266"}, {"lang": "en", "value": "CWE-284"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

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"matching"}]}, "original": {"product": "DNS-340L", "source": "cna", "vendor": "D-Link"}, "product": "dns-340l", "vendor": "d-link"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "20260205"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DNS-343", "source": "cna", "vendor": "D-Link"}, "product": "dns-343", "vendor": "d-link"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "20260205"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DNS-345", "source": "cna", "vendor": "D-Link"}, "product": "dns-345", "vendor": "d-link"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "20260205"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DNS-726-4", "source": "cna", "vendor": "D-Link"}, "product": "dns-726-4", "vendor": "d-link"}], "analysis": {"en": {"generated_at": "2026-04-02T23:02:47.034000+00:00", "value": {"mitigation_remediation": ["Upgrade to firmware versions released after 20260205 that fix the network_mgr.cgi access control issue.", "If a patch is not yet available, restrict HTTP access to the /cgi\u2011bin/network_mgr.cgi endpoint or block the device from the internal network to prevent unauthenticated queries.", "Monitor D\u2011Link advisories for a formal patch or security bulletin and apply it as soon as it is released."], "summary": {"action": "Patch Now", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "The flaw affects multiple D\u2011Link router models, including the DNS\u2011120, DNS\u20111550\u201104, DNS\u2011315L, DNS\u2011320, DNS\u2011320L, DNS\u2011320LW, DNS\u2011321, DNS\u2011323, DNS\u2011325, DNS\u2011326, DNS\u2011327L, DNS\u2011340L, DNS\u2011343, DNS\u2011345, DNS\u2011726\u20114, DNS\u20111100\u20114, DNS\u20111200\u201105, and other R\u2011Series firmware up to the 20260205 release. Any device running those firmware versions is vulnerable until a newer release resolves the improper access control.", "description_and_impact": "A vulnerability in the network manager CGI module allows attackers to retrieve IPv6 configuration information without proper authorization because the cgi_get_ipv6 function implements insecure permissions (CWE\u2011266) and improper authorization controls (CWE\u2011284). As a result, unauthenticated users can read sensitive network details, enabling an attacker to gain visibility into the device\u2019s network setup and potentially use that information for further reconnaissance. The flaw does not provide direct code execution but exposes confidential configuration data that could aid in a targeted attack against the connected network.", "risk_and_exploitability": "With a CVSS score of 5.3 and an EPSS rate below 1%, the overall risk is moderate, and the likelihood of exploitation is low, although the vulnerability is publicly available. The attack vector is likely remote, performed over the device\u2019s HTTP interface targeting the /cgi\u2011bin/network_mgr.cgi endpoint, and does not require authentication due to the missing permissions checks. No CISA KEV listing indicates that it has not yet been widely exploited, but defenders should assume the possibility and secure the affected interfaces."}}}}, "created": "2026-04-02T07:52:15.096945+00:00", "updated": "2026-04-03T09:19:19.765739+00:00", "vendors": ["d-link", "d-link$PRODUCT$dnr-202l", "d-link$PRODUCT$dnr-322l", "d-link$PRODUCT$dnr-326", "d-link$PRODUCT$dns-1100-4", "d-link$PRODUCT$dns-120", "d-link$PRODUCT$dns-1200-05", "d-link$PRODUCT$dns-1550-04", "d-link$PRODUCT$dns-315l", "d-link$PRODUCT$dns-320", "d-link$PRODUCT$dns-320l", "d-link$PRODUCT$dns-320lw", "d-link$PRODUCT$dns-321", "d-link$PRODUCT$dns-323", "d-link$PRODUCT$dns-325", "d-link$PRODUCT$dns-326", "d-link$PRODUCT$dns-327l", "d-link$PRODUCT$dns-340l", "d-link$PRODUCT$dns-343", "d-link$PRODUCT$dns-345", "d-link$PRODUCT$dns-726-4"]}