SARA / Free Tools / CVE / CVE-2023-2868

CVE-2023-2868 — Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

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).

CVSS
9.4 CRITICAL
EPSS
89.52% (top 0.50%)
CWE
CWE-20
Published
2023-05-24T18:00:52.360Z
Last modified
2025-10-21T23:05:47.195Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CISA KEV — Actively Exploited
Added to KEV
2023-05-26
BOD 22-01 due
2023-06-16
Ransomware use
Unknown

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
BarracudaBarracuda Email Security Gateway5.1.3.001

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2023-05-26. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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