Barracuda Networks ESG Appliance Improper Input Validation Vulnerability (CVE-2023-2868)
Severity: critical · Patch status: patched · Since 2023-05-26 · CVE-2023-2868
Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection. CISA added CVE-2023-2868 to its Known Exploited Vulnerabilities catalog on May 26, 2023, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Jun 16, 2023 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch