CVE-2022-30333
KEVRansomware UseRARLAB UnRAR Directory Traversal Vulnerability
Description
RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.
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.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NPublishedMay 9, 2022
Last modifiedOct 2, 2026
Added to KEVAug 9, 2022
Remediation dueAug 30, 2022
References
- packetstormsecurity.com/files/167989/Zimbra-UnRAR-Path-Traversal.htmlExploitThird Party Advisory
- blog.sonarsource.com/zimbra-pre-auth-rce-via-unrar-0day/ExploitThird Party Advisory
- lists.debian.org/debian-lts-announce/2023/08/msg00022.htmlMailing ListThird Party Advisory
- security.gentoo.org/glsa/202309-04Third Party Advisory
- rarlab.com/rar/rarlinux-x32-612.tar.gzPatch
- rarlab.com/rar_add.htmProduct
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30333US Government Resource
0 recent articles mention this CVE
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Risk assessment · Critical
Actively exploited and used by ransomware crews. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1518 days
- Ransomware
- Used in known ransomware campaigns
- CVSS
- 7.5 HIGH
- EPSS (30-day exploit probability)
- 99.2% · top 1% of all CVEs
- Weakness
- CWE-22
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
- 5.Verify offline/immutable backups and segment the affected systems. This flaw is used for ransomware initial access.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.