{"id":"CVE-2018-20820","aliases":["EUVD-2018-13362","GHSA-h3mv-4m2h-gvch"],"status":"published","title":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service ...","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00959,"percentile":0.61735,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2019-04-23T13:53:49Z","modified":"2026-10-20T13:44:52Z","products":[{"vendor":"dropbox","product":"lepton"}],"references":[{"url":"https://github.com/dropbox/lepton/issues/111","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/dropbox/lepton/commit/6a5ceefac1162783fffd9506a3de39c85c725761","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20820"},{"url":"https://github.com/advisories/GHSA-h3mv-4m2h-gvch"}],"sources":{"cve":[{"id":"CVE-2018-20820","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","status":"published","published":"2019-04-23T13:53:49Z","modified":"2024-08-05T12:12:27.362Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-13362","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","status":"published","published":"2019-04-23T13:53:49Z","modified":"2024-08-05T12:12:27Z","updated_at":"2026-11-03T02:39:29.769885Z"}],"ghsa":[{"id":"GHSA-h3mv-4m2h-gvch","title":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service ...","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","status":"published","published":"2022-05-24T16:44:09Z","modified":"2024-04-04T00:03:44Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:55:48.925076Z"}],"nvd":[{"id":"CVE-2018-20820","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","status":"published","published":"2019-04-23T14:29:00.367Z","modified":"2026-06-17T01:53:32.65Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"CVE-2018-20820","description":"read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.","status":"published","published":"2019-04-23T14:29:00.367Z","modified":"2026-10-20T13:44:52.973824565Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}