Is CVE-2023-2868 actively exploited?

Yes. CVE-2023-2868 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-2868 be exploited remotely?

The attack vector of CVE-2023-2868 has not been classified yet.

What is the CVSS score of CVE-2023-2868?

CVE-2023-2868 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2023-2868

HIGHCISA KEVIN THE WILD

CVE-2023-2868

Published: May 26, 2023

EPSS:89.52%probability of exploitation in 30 daysPercentile:99.5th

Official Description

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

NVD Source

CISA KEV Advisory

Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

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

Added to KEV: 2023-05-26Federal patch deadline: 2023-06-16

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in the Barracuda Email Security Gateway (ESG) appliance is an improper input validation flaw in handling .tar files, leading to remote command injection. Its high EPSS score of 0.89519 and inclusion in CISA's KEV confirm active exploitation, making this a critical vulnerability for affected appliances.

Active exploitation of this vulnerability has been observed in the wild and it is listed in CISA's KEV, indicating confirmed real-world attacks. The flaw is remotely exploitable through crafted input.

Recommended Action

Organizations using Barracuda Email Security Gateway appliances must apply all available patches and updates immediately. Review and harden input validation configurations where possible.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-2868 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-2868 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.