What is CVE-2022-30333?

CVE-2022-30333 is a high-severity vulnerability in Linux Kernel, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-05-09.

How severe is CVE-2022-30333?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-30333 known to be exploited?

Yes. CVE-2022-30333 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-09), indicating it is being actively exploited. 30 public proof-of-concept repositories are indexed.

Path Traversal in Linux Kernel

CVE-2022-30333

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-05-09 · last modified 2026-10-02.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.992 (99.9th percentile), scored 2026-10-15.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.991 · newest: 0.992 · change: +0.001

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-08-09. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-08-30.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

www.rarlab.com/rar_add.htm (Product)
www.rarlab.com/rar/rarlinux-x32-612.tar.gz (Patch)
blog.sonarsource.com/zimbra-pre-auth-rce-via-unrar-0day/ (Exploit, Third Party Advisory)
packetstormsecurity.com/files/167989/Zimbra-UnRAR-Path-Traversal.html (Exploit, VDB Entry, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/08/msg00022.html (mailing-list, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202309-04 (vendor-advisory, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-30333?: CVE-2022-30333 is a high-severity vulnerability in Linux Kernel, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-05-09.
How severe is CVE-2022-30333?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-30333 known to be exploited?: Yes. CVE-2022-30333 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-09), indicating it is being actively exploited. 30 public proof-of-concept repositories are indexed.