CVE-2023-27350
Published: April 21, 2023
Official Description
PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.
CISA KEV Advisory
PaperCut MF/NG Improper Access Control Vulnerability
PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in PaperCut MF/NG involves improper access control, allowing an attacker to bypass authentication and execute code with system privileges. The very high EPSS score of 0.94257 highlights a strong likelihood of exploitation, and its presence in the KEV confirms active exploitation.
This vulnerability is actively exploited in the wild, indicating that functional exploits are available and being used by threat actors. This flaw is remotely exploitable.
Immediately apply the latest security updates for PaperCut MF/NG. Review and strengthen access control policies to prevent unauthorized access and privilege escalation.
Technical Analysis
CVE-2023-27350 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-2023-27350 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.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-27350 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