CVE-2022-30333
HighExploitedPublic exploitRARLAB 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.
Published May 9, 2022 · Updated Oct 2, 2026 · Also known as DEBIAN-CVE-2022-30333, DLA-3534-1, SUSE-SU-2022:1760-1, UBUNTU-CVE-2022-30333, USN-6569-1
Key Facts
Patch immediately- CVE-2022-30333 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Unrar (Rarlab), Debian Linux, rar (debian) and 4 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 9, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 99% probability of exploitation in the next 30 days.
- Fixed versions are available, including libclamunrar 0.103.11-0ubuntu0.20.04.1, libclamunrar 0.103.11-0ubuntu0.22.04.1, libunrar-devel 5.6.1-4.8.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS (30-day exploit likelihood)
99%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-30333 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Aug 9, 2022 | Aug 30, 2022 | Known |
| Industry KEV feed | Aug 9, 2022 | Aug 30, 2022 | Known |
| CIRCL KEV | Aug 9, 2022 | Aug 30, 2022 | Known |
| ENISA EUVD | Aug 9, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
49 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| UnrarRarlab | See advisory | 6.12 |
| Debian LinuxDebian | 10.0 | n/a |
| rardebian | See advisory | 2:6.20-0.1~deb11u1 |
| unrar-nonfreedebian | See advisory | 1:6.0.3-1+deb11u1 |
| libclamunrarubuntu | See advisory | 0.103.11-0ubuntu0.20.04.1 |
Patched Releases
libclamunrar
0.103.11-0ubuntu0.20.04.1, 0.103.11-0ubuntu0.22.04.1
libunrar-devel
5.6.1-4.8.1
libunrar5_6_1
5.6.1-4.8.1
rar
2:6.20-0.1~deb10u1, 2:6.20-0.1~deb11u1, 2:6.20~b1-0.1, 2:6.23-1, 2:6.23-1~20.04.1, 2:6.23-1~22.04.1
Unrar
6.12, 5.6.1-4.8.1
unrar-nonfree
1:5.6.6-2ubuntu0.1, 1:6.0.3-1+deb11u1, 1:6.1.5-1ubuntu0.1, 1:6.1.7-1
Timeline
Publicly disclosed
May 9, 2022
Added to CISA KEV
Aug 9, 2022
Added to Industry KEV feed
Aug 9, 2022
Added to CIRCL KEV
Aug 9, 2022
Added to ENISA EUVD
Aug 9, 2022
Last updated
Oct 2, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References
- advisoryhttps://bugzilla.suse.com/1199349
- advisoryhttps://github.com/debian-calibre/unrar-nonfree/compare/upstream/6.1.6...upstream/6.1.7
- advisory[debian-lts-announce] 20230817 [SECURITY] [DLA 3534-1] rar security update
- advisoryGLSA-202309-04
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2022-30333
FAQ
Common Questions.
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.
Affected: Unrar (Rarlab); Debian Linux versions 10.0; rar (debian), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 9, 2022 and is known to be used in ransomware campaigns.
Yes. It was added on Aug 9, 2022 with a federal remediation due date of Aug 30, 2022.
Public exploit code is available.
Fixed versions are available, including libclamunrar 0.103.11-0ubuntu0.20.04.1, libclamunrar 0.103.11-0ubuntu0.22.04.1, libunrar-devel 5.6.1-4.8.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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