{"id":"CVE-2026-0392","state":"PUBLISHED","title":"eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update","description":"eParakstītājs 3.0 for Windows before version\n1.10.0 retrieves and executes its automatic updates over a channel that is not\nauthenticated or integrity-protected. On each launch the application fetches an\nupdate descriptor (XML) over TLS but accepts any TLS certificate (a permissive\nTrustManager and a HostnameVerifier that always returns true), does not verify\nany digital signature on the update descriptor, and does not verify the\nAuthenticode signature or a checksum of the downloaded installer before running\nit. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a\ncrafted update descriptor pointing to an attacker-controlled executable, which\nthe client downloads and executes, resulting in arbitrary code execution on the\nvictim host.","publishedAt":"2026-08-03T09:56:31.363Z","updatedAt":"2026-08-05T09:29:36.104Z","severity":{"score":7.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"ENISA"},"assigner":"ENISA","products":["Latvijas Valsts radio un televīzijas centrs (LVRTC) eParakstītājs 3.0"],"affected":[{"vendor":"Latvijas Valsts radio un televīzijas centrs (LVRTC)","product":"eParakstītājs 3.0","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.10.0","versionType":"semver"}],"platforms":["Windows"]}],"references":["https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jauna_eParakstitajs_30_versija_1100","https://cvd.cert.lv/inbox/view/vuln-all-1689187061","https://offseq.com/en/research/eparakstitajs-cve-2026-0392/"],"weaknesses":["CWE-494","CWE-295","CWE-347"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/0xxx/CVE-2026-0392.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0392","state":"PUBLISHED","datePublished":"2026-08-03T09:56:31.363Z","dateUpdated":"2026-08-05T09:29:36.104Z","assignerShortName":"ENISA","assignerOrgId":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158","dateReserved":"2025-11-27T11:36:47.937Z"},"containers":{"cna":{"title":"eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update","descriptions":[{"lang":"en","value":"eParakstītājs 3.0 for Windows before version\n1.10.0 retrieves and executes its automatic updates over a channel that is not\nauthenticated or integrity-protected. On each launch the application fetches an\nupdate descriptor (XML) over TLS but accepts any TLS certificate (a permissive\nTrustManager and a HostnameVerifier that always returns true), does not verify\nany digital signature on the update descriptor, and does not verify the\nAuthenticode signature or a checksum of the downloaded installer before running\nit. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a\ncrafted update descriptor pointing to an attacker-controlled executable, which\nthe client downloads and executes, resulting in arbitrary code execution on the\nvictim host."}],"affected":[{"vendor":"Latvijas Valsts radio un televīzijas centrs (LVRTC)","product":"eParakstītājs 3.0","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.10.0","versionType":"semver"}],"platforms":["Windows"]}],"references":[{"url":"https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jauna_eParakstitajs_30_versija_1100","tags":["vendor-advisory","release-notes"]},{"url":"https://cvd.cert.lv/inbox/view/vuln-all-1689187061","tags":["government-resource","third-party-advisory","permissions-required"]},{"url":"https://offseq.com/en/research/eparakstitajs-cve-2026-0392/","tags":["technical-description","third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"ACTIVE","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":"HIGH","baseScore":7.3,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-494","lang":"en","description":"CWE-494 Download of code without integrity check","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-295","lang":"en","description":"CWE-295 Improper certificate validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-347","lang":"en","description":"CWE-347 Improper verification of cryptographic signature","type":"CWE"}]}],"providerMetadata":{"shortName":"ENISA","orgId":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158","dateUpdated":"2026-08-05T09:29:36.104Z"},"workarounds":[{"lang":"en","value":"Until updated, disable\nautomatic updates and install new versions only from the official signed\npackage obtained over a trusted network, verifying the Authenticode signature\nmanually.","supportingMedia":[{"type":"text/html","base64":false,"value":"<span>Until updated, disable\nautomatic updates and install new versions only from the official signed\npackage obtained over a trusted network, verifying the Authenticode signature\nmanually.</span>"}]}],"solutions":[{"lang":"en","value":"Update eParakstītājs 3.0 to\nversion 1.10.0 or later, in which the update channel is authenticated and the\ndownloaded installer is signature-verified.","supportingMedia":[{"type":"text/html","base64":false,"value":"<span>Update eParakstītājs 3.0 to\nversion 1.10.0 or later, in which the update channel is authenticated and the\ndownloaded installer is signature-verified.</span>"}]}],"credits":[{"lang":"en","value":"Nils Putniņš, OffSeq (SIA SEQ)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T10:35:21.949793Z","id":"CVE-2026-0392","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-03T10:41:43.673Z"}}]}}}