Is It On KEV?

Barracuda Networks Email Security Gateway (ESG) Appliance

YES - ON THE CISA KEV LIST
CVE-2023-2868

Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

CISA catalog due date2023-06-16
overdue since 2023-06-16
EPSS exploit probability (next 30 days)86.8% · 100percentile
From CVE publication to KEV listing2 days (2023-05-24 → 2023-05-26)
Remediation window (KEV listing to due date)21 days
Days on the KEV list1265 days
Date added to KEV2023-05-26
Known ransomware campaign useUnknown
VendorBarracuda Networks
ProductEmail Security Gateway (ESG) Appliance
Weaknesses (CWE)CWE-20

Barracuda Networks: 3 entries (0.2% of all KEV entries are from this vendor); 2 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection.

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://status.barracuda.com/incidents/34kx82j5n4q9; https://nvd.nist.gov/vuln/detail/CVE-2023-2868

References

Other KEV entries for this vendor: Barracuda Networks

Barracuda Networks - Vendors with KEV entries

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