{"cve":"CVE-2023-2868","nvd":{"published":"2023-05-24T19:15:09.363","modified":"2026-06-17T05:53:39.770","status":"Analyzed","description":"A remote command injection vulnerability exists in the Barracuda Email Security Gateway (appliance form factor only) product effecting versions 5.1.3.001-9.2.0.006. The vulnerability arises out of a failure to comprehensively sanitize the processing of .tar file (tape archives). The vulnerability stems from incomplete input validation of a user-supplied .tar file as it pertains to the names of the files contained within the archive. As a consequence, a remote attacker can specifically format these file names in a particular manner that will result in remotely executing a system command through Perl's qx operator with the privileges of the Email Security Gateway product. This issue was fixed as part of BNSF-36456 patch. This patch was automatically applied to all customer appliances.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-77","CWE-20"],"references":["https://status.barracuda.com/incidents/34kx82j5n4q9","https://www.barracuda.com/company/legal/esg-vulnerability","https://status.barracuda.com/incidents/34kx82j5n4q9","https://www.barracuda.com/company/legal/esg-vulnerability","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868"],"products":["barracuda:email_security_gateway_300_firmware","barracuda:email_security_gateway_400_firmware","barracuda:email_security_gateway_600_firmware","barracuda:email_security_gateway_800_firmware","barracuda:email_security_gateway_900_firmware"],"source":"nvd","synced_at":"2026-10-19T21:38:18.424950729+00:00"},"epss":{"cve":"CVE-2023-2868","score":0.86841,"percentile":0.99744,"date":"2026-11-01"},"kev":{"cve":"CVE-2023-2868","date_added":"2023-05-26","due_date":"2023-06-16","vendor":"Barracuda Networks","product":"Email Security Gateway (ESG) Appliance","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}