{"schemaVersion":3,"id":"CVE-2021-40756","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Adobe After Effects version 18.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.","dates":{"published":"2021-11-18T16:22:59.862Z","modified":"2025-04-23T19:21:39.109Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.5,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.5,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01374,"percentile":0.71599,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01374},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01374,"percentile":0.71599}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01374,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01374,"percentile":0.71599}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-476","name":"NULL Pointer Dereference","description":"The product dereferences a pointer that it expects to be valid but is NULL.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/476.html"}],"affected":[{"vendor":"adobe","product":"after_effects","name":"after effects","label":"after_effects","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, ≤ 18.4.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, ≤ None","noFixRecorded":false,"fixedIn":null},{"text":"≤ 18.4.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, ≤ 18.4.1 | ≥ unspecified, ≤ None | ≤ 18.4.1","eol":null,"hubHref":"/vendor/adobe/after_effects"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://helpx.adobe.com/security/products/after_effects/apsb21-79.html","label":"helpx.adobe.com/security/products/after_effects/apsb21-79.html","hostname":"helpx.adobe.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-11-18T16:22:59.862Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-23T19:21:39.109Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":22,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:46:49.899Z","stale":false,"partial":false}}