$ cve CVE-2023-2868 JSON

CVE-2023-2868 KEV

9.4

CRITICAL · CVSS 3.1 · EPSS 87.7% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2023-06-16.

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.

Scoring

CVSS	9.4 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS	87.69% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-20
On CISA KEV	yes — remediate by 2023-06-16
Public exploit	none known
Published	2023-05-24
Last modified	2026-06-17

CISA KEV

Name	Barracuda Networks ESG Appliance Improper Input Validation Vulnerability
Added	2023-05-26
Due	2023-06-16
Vendor / product	Barracuda Networks / Email Security Gateway (ESG) Appliance
Ransomware use	none reported

Affected (10)

Vendor	Product
barracuda	email security gateway 300
barracuda	email security gateway 300 firmware
barracuda	email security gateway 400
barracuda	email security gateway 400 firmware
barracuda	email security gateway 600
barracuda	email security gateway 600 firmware
barracuda	email security gateway 800
barracuda	email security gateway 800 firmware
barracuda	email security gateway 900
barracuda	email security gateway 900 firmware

References

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