CVE-2023-2868

9.4 CRITICAL CISA KEV - Actively Exploited
Published: May 24, 2023 Modified: October 24, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://status.barracuda.com/incidents/34kx82j5n4q9
Source: cve-coordination@google.com
Vendor Advisory
https://www.barracuda.com/company/legal/esg-vulnerability
Source: cve-coordination@google.com
Mitigation Vendor Advisory
https://status.barracuda.com/incidents/34kx82j5n4q9
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.barracuda.com/company/legal/esg-vulnerability
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.4 / 10.0
EPSS (Exploit Probability)
90.3%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2023-06-16

Weaknesses (CWE)

Affected Vendors

barracuda