{"schema":"threatline.record/2","record":{"id":"CVE-2023-2868","aliases":[],"summary":"Barracuda Networks ESG Appliance Improper Input Validation Vulnerability","details":"Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection.","categories":["Network & edge"],"product":"Email Security Gateway (ESG) Appliance","vendor":"Barracuda Networks","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-2868","source_modified_at":"2025-10-21T23:05:47.195Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Barracuda Email Security Gateway","vendor":"Barracuda","versions":[{"lessThan":"9.2.0.006","status":"affected","version":"5.1.3.001","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-2868","source_modified_at":"2025-10-21T23:05:47.195Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Barracuda Email Security Gateway","ecosystem":null},"version":"9.2.0.006","basis":"first unaffected version stated in the CVE record"}],"cvss":9.4,"severity":"Critical","kev":{"listed":true,"date_added":"2023-05-26","due_date":"2023-06-16","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.86841,"percentile":0.99747,"score_date":"2026-10-23"},"published_at":"2023-05-24T18:00:52.360Z","modified_at":"2025-10-21T23:05:47.195Z","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-2023-2868","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:05:47.195Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/barracuda_esg_tarfile_rce.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2023-05-23"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2023-2868","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","EPSS"],"references":[{"source":"CVE List","url":"https://status.barracuda.com/incidents/34kx82j5n4q9","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2868","source":"CISA KEV"},{"source":"CVE List","url":"https://www.barracuda.com/company/legal/esg-vulnerability","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-01-16T15:36:08.898946Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"Barracuda ESG TAR Filename Command Injection","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/barracuda_esg_tarfile_rce.rb","date":"2023-05-23","added":"2026-04-02","check":true}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:05:47.195Z","content_hash":"d0a6296389af8cb95eac5ddb3c583c2da3fae4b842b16e0e4f206e5ff6310742"}}