{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27869","assignerOrgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","state":"PUBLISHED","assignerShortName":"HackRTU","dateReserved":"2026-02-24T08:59:28.139Z","datePublished":"2026-06-17T08:13:37.802Z","dateUpdated":"2026-07-01T11:17:35.841Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","shortName":"HackRTU","dateUpdated":"2026-07-01T11:17:35.841Z"},"title":"WEB SERVICE (HTTP) DENIAL OF SERVICE VIA SLOW HEADERS ON REGESTA SMART HD-PLC OF TELDAT","datePublic":"2026-06-17T08:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-770","description":"CWE-770 Allocation of resources without limits or throttling","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-227","descriptions":[{"lang":"en","value":"CAPEC-227 Sustained Client Engagement"}]},{"capecId":"CAPEC-469","descriptions":[{"lang":"en","value":"CAPEC-469 HTTP DoS"}]}],"affected":[{"vendor":"Teldat","product":"Regesta Smart HD-PLC - TLDPH16D2","versions":[{"status":"affected","version":"11.02.05.10.02"},{"status":"unaffected","version":"11.02.06.00.02"}],"defaultStatus":"unknown"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:teldat:regesta_smart_hd-plc_-_tldph16d2:11.02.05.10.02:*:*:*:*:*:*:*"},{"vulnerable":false,"criteria":"cpe:2.3:a:teldat:regesta_smart_hd-plc_-_tldph16d2:11.02.06.00.02:*:*:*:*:*:*:*"}]}]}],"descriptions":[{"lang":"en","value":"An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration action is required) who has the vulnerable software could, with a Slow Loris attack, cause Denial of Service (DoS) on the web interface of the device. This issue affects Regesta Smart HD-PLC - TLDPH16D2: \n11.02.05.10.02.","supportingMedia":[{"type":"text/html","base64":false,"value":"An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration action is required) who has the vulnerable software could, with a Slow Loris attack, cause <b>Denial of Service (DoS)</b> on the web interface of the device.&nbsp;<span>T</span><span>his issue affects Regesta Smart HD-PLC - TLDPH16D2: \n11.02.05.10.02.</span><br>"}]}],"references":[{"url":"https://www.hackrtu.com/blog/CNA-HRTU-0003/","tags":["technical-description","patch"]},{"url":"https://www.hackrtu.com/blog/CNA-CVE-2026-27869/","tags":["technical-description","patch"]},{"url":"https://www.teldat.com/es/","tags":["product"]},{"url":"https://support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdf","tags":["product"]},{"url":"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","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":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}}],"solutions":[{"lang":"en","value":"The provider has implement the new version 11.02.06.00.02 which solves the security problems detected in the affected version. The end user has to download the new version in the Teldat - Client Support Portal and implement it in the device (\n https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US ).","supportingMedia":[{"type":"text/html","base64":false,"value":"The provider has implement the new version&nbsp;<b>11.02.06.00.02</b>&nbsp;which solves the security problems detected in the affected version. The end user has to download the new version in the <b>Teldat - Client Support Portal</b> and implement it in the device (\n<a href=\"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US\" title=\"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US\">https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US</a>)."}]}],"timeline":[{"time":"2026-02-20T09:00:00.000Z","lang":"en","value":"Vulnerability detection by the researchers"},{"time":"2026-02-22T09:00:00.000Z","lang":"en","value":"Report from researchers to the CNA of HackRTU"},{"time":"2026-02-25T09:00:00.000Z","lang":"en","value":"Report from HackRTU CNA to the provider"},{"time":"2026-05-29T08:00:00.000Z","lang":"en","value":"New version published by the provider"},{"time":"2026-06-17T08:00:00.000Z","lang":"en","value":"Vulnerabilities published by HackRTU's CNA"}],"credits":[{"lang":"en","value":"Aarón Flecha Menéndez","type":"finder"},{"lang":"en","value":"Víctor Bello Cuevas","type":"finder"}],"source":{"advisory":"HRTU#0003","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-17T14:20:10.059533Z","id":"CVE-2026-27869","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":"2026-06-17T14:20:21.690Z"}}]}}