{"schema":"threatline.record/2","record":{"id":"CVE-2026-87886","aliases":[],"summary":"Acronis Backup Incorrect Default Permissions Vulnerability","details":"Acronis Backup plugin for cPanel & WHM and extension for Plesk contains an incorrect default permissions vulnerability that could allow for privilege escalation.","categories":["Unclassified"],"product":"Backup","vendor":"Acronis","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Acronis Backup plugin for cPanel & WHM","vendor":"Acronis","versions":[{"lessThan":"1.9.3.1021","status":"affected","version":"unspecified","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Acronis Backup extension for Plesk","vendor":"Acronis","versions":[{"lessThan":"1.8.11.638","status":"affected","version":"unspecified","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Acronis Backup plugin for DirectAdmin","vendor":"Acronis","versions":[{"lessThan":"1.2.3.238","status":"affected","version":"unspecified","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Acronis Backup plugin for cPanel & WHM","ecosystem":null},"version":"1.9.3.1021","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Acronis Backup extension for Plesk","ecosystem":null},"version":"1.8.11.638","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","source_modified_at":"2026-09-18T14:33:42.532Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Acronis Backup plugin for DirectAdmin","ecosystem":null},"version":"1.2.3.238","basis":"first unaffected version stated in the CVE record"}],"cvss":7.8,"severity":"High","kev":{"listed":true,"date_added":"2026-09-16","due_date":"2026-09-19","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","ransomware_campaign_use":"Unknown","forensic_triage":true},"epss":{"probability":0.00233,"percentile":0.134,"score_date":"2026-10-23"},"published_at":"2026-09-17T22:57:18.089Z","modified_at":"2026-09-18T14:33:42.532Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-87886","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-18T14:33:42.532Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-87886","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://security-advisory.acronis.com/advisories/SEC-10986","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87886","source":"CISA KEV"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87886","tags":["exploit"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2026-09-18T12:27:59.851837Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-18T14:33:42.532Z","content_hash":"37fbfd4f97cce1f3df437f6c8a4a65b018097b4b799f9fa9444119e331b9804a"}}