CVE-2022-30333
Published: August 9, 2022
Official Description
RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.
CISA KEV Advisory
RARLAB UnRAR Directory Traversal Vulnerability
RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.
Apply updates per vendor instructions.
Risk Analysis
This directory traversal vulnerability in RARLAB UnRAR on Linux and UNIX allows an attacker to write files during an extract operation. Rated as HIGH severity with a very high EPSS score, this indicates a significant likelihood of exploitation. Its presence in CISA's KEV confirms it has been actively exploited.
This vulnerability has been actively exploited in the wild and is part of CISA's KEV, indicating confirmed real-world attacks. The flaw is triggered during the unpacking of malicious archives.
Users should update RARLAB UnRAR on Linux and UNIX systems to a patched version. Exercise caution when extracting archives from untrusted sources.
Technical Analysis
CVE-2022-30333 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-2022-30333 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-2022-30333 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