RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files…
Priority CRITICAL 100Exploited in the wildCWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2022-08-09CISA due date 2022-08-30Known ransomware use
EPSS 0.99233 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rarlab:unrar:*:*:*:*:*:*:*:* | before 6.12 | Vulnerable | RARLAB |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:opengroup:unix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Opengroup |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:rarlab:unrar:*:*:*:*:*:*:*:* Versions before 6.12 Vulnerable ·RARLAB
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:opengroup:unix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Opengroup
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-08-09 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2022-30333
- 2026-10-03 Alias added: GHSA-h4mr-p94x-gf79
References
Exploit 2
More RARLAB Unrar vulnerabilities
- TI-2012-05408 A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos… CVSS 3.0CRITICAL 9.8
- TI-2017-09587 libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function. CVSS 3.0CRITICAL 9.8
- TI-2017-09586 libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function. CVSS 3.0CRITICAL 9.8
- TI-2017-09585 libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode… CVSS 3.0CRITICAL 9.8
- TI-2017-10285 unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in… CVSS 3.1CRITICAL 9.1
- TI-2022-24115 UnRAR before 6.2.3 allows extraction of files outside of the destination folder via symlink chains. CVSS 3.1HIGH 7.5
Sources
- CVE-2022-30333 · CVE Program
- CVE-2022-30333 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-h4mr-p94x-gf79 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences