CVE-2022-30333

RARLAB UnRAR: Directory Traversal

As of , CVE-2022-30333 in RARLAB UnRAR is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 9 August 2022
US federal deadline
30 August 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
KnownCISA changed it from Unknown to Known on 9 June 2025.
EPSS score
0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.74 on 9 August 2022EPSS on the day CISA listed it.
Public exploit
2 Metasploit modules
Fix
Vendor advice: www.rarlab.comLinks below, from CISA's entry.

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

  • www.rarlab.comVulnerability updated with version 6.12. Accessing link will download update information

What the flaw is

RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.

CISA's description

RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. NOTE: WinRAR and Android RAR are unaffected.

The CVE record's description, from mitre

CVE published
9 May 2022
Assigned by
mitre
CVSS
9.8 Critical (CVSS 3.1, from CISA-ADP)
CWE-59
Improper Link Resolution Before File Access ('Link Following')
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.
  4. CISA changed its entry. Ransomware use: Unknown to Known.

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

  • Metasploit: UnRAR Path Traversal (CVE-2022-30333)exploit module, rank excellent
  • Metasploit: UnRAR Path Traversal in Zimbra (CVE-2022-30333)exploit module, rank excellent

Read further