{"id":"CVE-2017-20190","state":"PUBLISHED","title":"Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during processing of multiple Unicode combining characters, aka a ","description":"Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during processing of multiple Unicode combining characters, aka a \"Zalgo text\" attack. NOTE: third parties dispute whether the computational cost of interpreting Unicode data should be considered a vulnerability.","publishedAt":"2024-03-26T00:00:00.000Z","updatedAt":"2024-08-08T18:54:20.251Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://talk.dynalist.io/t/dynalist-is-vulnerable-to-zalgo/1234","https://en.wikipedia.org/wiki/Zalgo_text","https://aka.ms/windowsbugbar"],"weaknesses":["CWE-176"],"ingestedAt":"2026-10-29T19:43:37.076Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2017/20xxx/CVE-2017-20190.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2017-20190","state":"PUBLISHED","datePublished":"2024-03-26T00:00:00.000Z","dateUpdated":"2024-08-08T18:54:20.251Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2024-03-26T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during processing of multiple Unicode combining characters, aka a \"Zalgo text\" attack. NOTE: third parties dispute whether the computational cost of interpreting Unicode data should be considered a vulnerability."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://talk.dynalist.io/t/dynalist-is-vulnerable-to-zalgo/1234"},{"url":"https://en.wikipedia.org/wiki/Zalgo_text"},{"url":"https://aka.ms/windowsbugbar"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2024-03-26T23:49:42.036Z"},"tags":["disputed"]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://talk.dynalist.io/t/dynalist-is-vulnerable-to-zalgo/1234","tags":["x_transferred"]},{"url":"https://en.wikipedia.org/wiki/Zalgo_text","tags":["x_transferred"]},{"url":"https://aka.ms/windowsbugbar","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T21:45:25.973Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"microsoft","product":"windows","defaultStatus":"unknown","versions":[{"version":"8","status":"affected","lessThanOrEqual":"11","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-04-15T16:50:02.920361Z","id":"CVE-2017-20190","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-176","type":"CWE","lang":"en","description":"CWE-176 Improper Handling of Unicode Encoding"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-08-08T18:54:20.251Z"}}]}}}