CVE-2022-0543
Published: March 28, 2022
Official Description
Redis is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.
CISA KEV Advisory
Debian-specific Redis Server Lua Sandbox Escape Vulnerability
Redis is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.
Apply updates per vendor instructions.
Risk Analysis
This Debian-specific Lua sandbox escape vulnerability in Redis can lead to remote code execution. The very high EPSS score indicates a strong likelihood of exploitation, and its inclusion in CISA's KEV confirms active exploitation, making this a critical and urgent issue.
Active exploitation of this vulnerability has been observed in the wild, indicating that working exploits are readily available and being used by attackers. This flaw is remotely exploitable.
Apply the latest security updates for Redis, especially on Debian-based systems. Restrict network access to Redis instances and ensure they are not exposed to untrusted networks.
Technical Analysis
CVE-2022-0543 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-2022-0543 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.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-0543 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1