{"id":"CVE-2026-12819","state":"PUBLISHED","title":"DVP-12SE Missing Authentication and Unauthorized Write access Vulnerability","description":"Delta Electronics DVP12SE PLC exposes a Modbus TCP service over a specified port without authentication or access control, permitting unauthenticated interaction with security-sensitive PLC functions.","publishedAt":"2026-06-30T06:28:51.514Z","updatedAt":"2026-06-30T12:50:59.070Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"Deltaww"},"assigner":"Deltaww","products":["deltaww DVP-12SE"],"affected":[{"vendor":"deltaww","product":"DVP-12SE","defaultStatus":"unaffected","versions":[{"version":"*","status":"affected"}]}],"references":["https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00011_DVP12SE%20Multiple%20Vulnerabilities%20(CVE-2026-12818,%20CVE-2026-12819)_v1.0.pdf"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12819.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12819","state":"PUBLISHED","datePublished":"2026-06-30T06:28:51.514Z","dateUpdated":"2026-06-30T12:50:59.070Z","assignerShortName":"Deltaww","assignerOrgId":"759f5e80-c8e1-4224-bead-956d7b33c98b","dateReserved":"2026-06-21T10:18:28.804Z"},"containers":{"cna":{"title":"DVP-12SE Missing Authentication and Unauthorized Write access Vulnerability","descriptions":[{"lang":"en","value":"Delta Electronics DVP12SE PLC exposes a Modbus TCP service over a specified port without authentication or access control, permitting unauthenticated interaction with security-sensitive PLC functions."}],"affected":[{"vendor":"deltaww","product":"DVP-12SE","defaultStatus":"unaffected","versions":[{"version":"*","status":"affected"}]}],"references":[{"url":"https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00011_DVP12SE%20Multiple%20Vulnerabilities%20(CVE-2026-12818,%20CVE-2026-12819)_v1.0.pdf"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"CRITICAL","baseScore":9.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306 Missing Authentication for Critical Function","type":"CWE"}]}],"providerMetadata":{"shortName":"Deltaww","orgId":"759f5e80-c8e1-4224-bead-956d7b33c98b","dateUpdated":"2026-06-30T06:28:51.514Z"},"datePublic":"2026-06-30T05:29:00.000Z","impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115: Authentication Bypass"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:deltaww:dvp-12se:*:*:*:*:*:*:*:*"}]}]}],"workarounds":[{"lang":"en","value":"Users are recommended to take the following mitigation measures:\n\n  *  Enable the IP Filter feature: Configure and enable the PLC's built-in IP Filter function via the programming software. Restrict access exclusively to the IP addresses of trusted devices (such as designated HMI panels or SCADA hosts) to block unauthorized network access.\n\n  *  Set up PLC password protection: Enable password protection for the PLC within the programming software to ensure the device's core control logic and parameters cannot be easily downloaded, overwritten, or tampered with.\n\n  *  Implement network isolation and firewall protection: Deploy the PLC within an independent local area network (OT control network) secured by a firewall. Never connect the device directly to the office network or the Internet. If remote access is required, enforce the use of a secure, authorized VPN tunnel.","supportingMedia":[{"type":"text/html","base64":false,"value":"Users are recommended to take the following mitigation measures:\n<br><ul><li>Enable the IP Filter feature: Configure and enable the PLC's built-in IP Filter function via the programming software. Restrict access exclusively to the IP addresses of trusted devices (such as designated HMI panels or SCADA hosts) to block unauthorized network access.\n</li><li>Set up PLC password protection: Enable password protection for the PLC within the programming software to ensure the device's core control logic and parameters cannot be easily downloaded, overwritten, or tampered with.\n</li><li>Implement network isolation and firewall protection: Deploy the PLC within an independent local area network (OT control network) secured by a firewall. Never connect the device directly to the office network or the Internet. If remote access is required, enforce the use of a secure, authorized VPN tunnel.&nbsp;</li></ul>"}]}],"credits":[{"lang":"en","value":"CISA","type":"coordinator"},{"lang":"en","value":"Adm Bin Harbi (0xnoag) - Corvo Security","type":"reporter"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-30T12:50:51.923347Z","id":"CVE-2026-12819","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-30T12:50:59.070Z"}}]}}}