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CVE-2022-30333

RARLAB UnRAR Directory Traversal

7.5 HIGHActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 99.2%
  1. Published9 May 2022
  2. Added to CISA KEV9 Aug 2022
  3. Remediation due30 Aug 2022
Actively exploited (CISA KEV)

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

Added to KEV: 9 Aug 2022Federal remediation due: 30 Aug 2022Used in ransomware

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

Rarlab Unrar< 6.12
Debian Linux10.0

Remediation

Fixed in
Rarlab Unrar≥ 6.12

References

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Frequently asked

Is CVE-2022-30333 being actively exploited?

Yes. CVE-2022-30333 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 9 Aug 2022. It has been used in ransomware campaigns.

How severe is CVE-2022-30333?

CVE-2022-30333 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 99.2% probability of exploitation.

Which products are affected by CVE-2022-30333?

Affected products include Rarlab Unrar, Debian Linux.

How do I fix CVE-2022-30333?

Upgrade affected software to a fixed version, for example Rarlab Unrar 6.12 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-30333 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.