{"history":[{"alert":0,"cve":"CVE-2019-18935","id":21889,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":19506,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":17472,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":15536,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":13514,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":11296,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":1,"cve":"CVE-2019-18935","id":10667,"kind":"cna","observed_at":1793960400,"payload":"{\"containers\": {\"adp\": [{\"providerMetadata\": {\"dateUpdated\": \"2024-08-05T02:02:40.029Z\", \"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\"}, \"references\": [{\"tags\": [\"x_transferred\"], \"url\": \"https://www.telerik.com/support/whats-new/release-history\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://github.com/bao7uo/RAU_crypto\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://github.com/noperator/CVE-2019-18935\"}, {\"tags\": [\"x_transferred\"], \"url\": \"http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29\"}, {\"tags\": [\"x_transferred\"], \"url\": \"http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html\"}, {\"tags\": [\"x_transferred\"], \"url\": \"https://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/\"}], \"title\": \"CVE Program Container\"}, {\"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"version\": \"3.1\"}}, {\"other\": {\"content\": {\"id\": \"CVE-2019-18935\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-02-04T20:02:54.779183Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935\"}, \"type\": \"kev\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-502\", \"description\": \"CWE-502 Deserialization of Untrusted Data\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2025-10-21T23:35:56.289Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2019-18935 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"n/a\", \"vendor\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)\"}], \"problemTypes\": [{\"descriptions\": [{\"description\": \"n/a\", \"lang\": \"en\", \"type\": \"text\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2023-03-15T00:00:00.000Z\", \"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\"}, \"references\": [{\"url\": \"https://www.telerik.com/support/whats-new/release-history\"}, {\"url\": \"https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html\"}, {\"url\": \"https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization\"}, {\"url\": \"https://github.com/bao7uo/RAU_crypto\"}, {\"url\": \"https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui\"}, {\"url\": \"https://github.com/noperator/CVE-2019-18935\"}, {\"url\": \"http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html\"}, {\"url\": \"https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29\"}, {\"url\": \"http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html\"}, {\"url\": \"https://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/\"}]}}, \"cveMetadata\": {\"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"assignerShortName\": \"mitre\", \"cveId\": \"CVE-2019-18935\", \"datePublished\": \"2019-12-11T00:00:00.000Z\", \"dateReserved\": \"2019-11-13T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T23:35:56.289Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"},{"alert":0,"cve":"CVE-2019-18935","id":9042,"kind":"epss","observed_at":1793895600,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":6830,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.99737, \"percentile\": 0.99953}"},{"alert":0,"cve":"CVE-2019-18935","id":4607,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.99737, \"percentile\": 0.99954}"},{"alert":0,"cve":"CVE-2019-18935","id":2389,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.99737, \"percentile\": 0.99954}"},{"alert":1,"cve":"CVE-2019-18935","id":1696,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2019-18935\", \"cwes\": [\"CWE-502\"], \"dateAdded\": \"2021-11-03\", \"dueDate\": \"2022-05-03\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Known\", \"notes\": \"https://nvd.nist.gov/vuln/detail/CVE-2019-18935\", \"product\": \"Telerik UI for ASP.NET AJAX\", \"requiredAction\": \"Apply updates per vendor instructions.\", \"shortDescription\": \"Progress Telerik UI for ASP.NET AJAX contains a deserialization of untrusted data vulnerability through RadAsyncUpload which leads to code execution on the server in the context of the w3wp.exe process.\", \"vendorProject\": \"Progress\", \"vulnerabilityName\": \"Progress Telerik UI for ASP.NET AJAX Deserialization of Untrusted Data Vulnerability\"}"}],"record":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"cna":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-05T02:02:40.029Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_transferred"],"url":"https://www.telerik.com/support/whats-new/release-history"},{"tags":["x_transferred"],"url":"https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html"},{"tags":["x_transferred"],"url":"https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization"},{"tags":["x_transferred"],"url":"https://github.com/bao7uo/RAU_crypto"},{"tags":["x_transferred"],"url":"https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui"},{"tags":["x_transferred"],"url":"https://github.com/noperator/CVE-2019-18935"},{"tags":["x_transferred"],"url":"http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html"},{"tags":["x_transferred"],"url":"https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29"},{"tags":["x_transferred"],"url":"http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html"},{"tags":["x_transferred"],"url":"https://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2019-18935","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-02-04T20:02:54.779183Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2021-11-03","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935"},"type":"kev"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-10-21T23:35:56.289Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935"}],"timeline":[{"lang":"en","time":"2021-11-03T00:00:00.000Z","value":"CVE-2019-18935 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)"}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2023-03-15T00:00:00.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://www.telerik.com/support/whats-new/release-history"},{"url":"https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html"},{"url":"https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization"},{"url":"https://github.com/bao7uo/RAU_crypto"},{"url":"https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui"},{"url":"https://github.com/noperator/CVE-2019-18935"},{"url":"http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html"},{"url":"https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29"},{"url":"http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html"},{"url":"https://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/"}]}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2019-18935","datePublished":"2019-12-11T00:00:00.000Z","dateReserved":"2019-11-13T00:00:00.000Z","dateUpdated":"2025-10-21T23:35:56.289Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1793960400,"cve":"CVE-2019-18935","description":"Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)","epss":{"date":"2026-11-12","epss":0.99737,"percentile":0.99953},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2019-18935","cwes":["CWE-502"],"dateAdded":"2021-11-03","dueDate":"2022-05-03","forensicTriage":"No","knownRansomwareCampaignUse":"Known","notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-18935","product":"Telerik UI for ASP.NET AJAX","requiredAction":"Apply updates per vendor instructions.","shortDescription":"Progress Telerik UI for ASP.NET AJAX contains a deserialization of untrusted data vulnerability through RadAsyncUpload which leads to code execution on the server in the context of the w3wp.exe process.","vendorProject":"Progress","vulnerabilityName":"Progress Telerik UI for ASP.NET AJAX Deserialization of Untrusted Data Vulnerability"},"kev_checked":1794522003,"products":"n/a n/a","references":["https://www.telerik.com/support/whats-new/release-history","https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html","https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization","https://github.com/bao7uo/RAU_crypto","https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui","https://github.com/noperator/CVE-2019-18935","http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html","https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29","http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html","https://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","provider":"CISA-ADP","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Progress Telerik UI for ASP.NET AJAX Deserialization of Untrusted Data Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}