{"id":"CVE-2019-20433","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-20433","generatedAt":"2026-10-27T21:19:24.996Z","title":"libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.","description":"libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.","published":"2020-01-27T15:15:12.000Z","lastModified":"2026-06-17T02:30:26.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},"cwe":["CWE-125"],"affected":["gnu/aspell"],"epss":{"score":0.01739,"percentile":0.77564,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://aspell.net/buffer-overread-ucs.txt","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://aspell.net/buffer-overread-ucs.txt","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-20433","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}