CVE-2023-2868
Remote Code injection in Barracuda Email Security Gateway
Barracuda Networks·Email Security Gateway (ESG) Appliance
- Added
- May 26, 2023
- Fix due
- Jun 16, 2023
- Ransomware
- Not known
- Published
- May 24, 2023
- Updated
- Oct 21, 2025
- First covered
- Nov 4, 2026
- Latest story
- 1 week ago
Summary
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.
CWE-20Improper Input Validation
Attack profile
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:LCISA required action
Apply updates per vendor instructions.
Affected products
- Barracuda Email Security Gateway5.1.3.001 to before 9.2.0.006