{"schemaVersion":3,"id":"CVE-2020-2016","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A race condition due to insecure creation of a file in a temporary directory vulnerability in PAN-OS allows for root privilege escalation from a limited linux user account. This allows an attacker who has escaped the restricted shell as a low privilege administrator, possibly by exploiting another vulnerability, to escalate privileges to become root user. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All versions of PAN-OS 8.0.","dates":{"published":"2020-05-13T19:07:14.700Z","modified":"2024-09-16T23:31:31.207Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.5,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:M/Au:S/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7,"severity":"high","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7,"severity":"high","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":8.5,"severity":"high","vector":"AV:N/AC:M/Au:S/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00568,"percentile":0.46316,"severity":"low","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-22T00:00:00.000Z","baselineScore":0.00568},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.00568,"percentile":0.46316}],"last30":[{"date":"2026-09-22T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00568,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.00568,"percentile":0.46316}]},"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-377","name":"Insecure Temporary File","description":"Creating and using insecure temporary files can leave application and system data vulnerable to attack.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/377.html"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","description":"The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/362.html"}],"affected":[{"vendor":"palo alto networks","product":"pan-os","name":"PAN-OS","label":"pan-os","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.0.0, < 8.1.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 7.1, < 7.1.26","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.1, < 8.1.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.0, < 9.0.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.0.0, < 8.1.0 | ≥ 7.1, < 7.1.26 | ≥ 8.1, < 8.1.13 | ≥ 9.0, < 9.0.6","eol":{"isEol":true,"eolDate":"2019-10-31T00:00:00.000Z","matchMethod":"alias_exact","cycle":{"name":"8.0","label":"8.0","eolFrom":"2019-10-31T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":"8.0.20"},"product":{"name":"panos","label":"Palo Alto Networks PAN-OS","category":"os"}},"hubHref":"/vendor/palo_alto_networks/pan-os"},{"vendor":"paloaltonetworks","product":"pan-os","name":"pan-os","label":"pan-os","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ 7.1.0, < 7.1.26","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, ≤ 8.0.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.1.0, < 8.1.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.0.0, < 9.0.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.1.0, < 7.1.26 | ≥ 8.0.0, ≤ 8.0.20 | ≥ 8.1.0, < 8.1.13 | ≥ 9.0.0, < 9.0.6","eol":{"isEol":null,"eolDate":null,"matchMethod":"alias_exact","cycle":null,"product":{"name":"panos","label":"Palo Alto Networks PAN-OS","category":"os"}},"hubHref":"/vendor/paloaltonetworks/pan-os"}],"affectedCount":2,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://security.paloaltonetworks.com/CVE-2020-2016","label":"security.paloaltonetworks.com/CVE-2020-2016","hostname":"security.paloaltonetworks.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-05-13T19:07:14.700Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T23:31:31.207Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":34,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T15:12:57.091Z","stale":false,"partial":false}}