Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability (CVE-2023-3519)
Severity: critical · Patch status: unknown · Since 2023-07-19 · CVE-2023-3519
Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution. CISA added CVE-2023-3519 to its Known Exploited Vulnerabilities catalog on Jul 19, 2023, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Aug 9, 2023 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
