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CVE-2023-43066

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-23 · updated 2026-06-17
• Weakness: CWE-78

Description

Dell Unity prior to 5.3 contains a Restricted Shell Bypass vulnerability. This could allow an authenticated, local attacker to exploit this vulnerability by authenticating to the device CLI and issuing certain commands.

Affected products

• Dell Unity: before 5.3.0.0.5.120 — fixed in 5.3.0.0.5.120
• Dell Unity Xt Operating Environment: before 5.3.0.0.5.120 — fixed in 5.3.0.0.5.120
• DELL EMC UnityVSA Operating Environment: before 5.3.0.0.5.120 — fixed in 5.3.0.0.5.120

How to fix

Upgrade to a fixed version: Dell Unity 5.3.0.0.5.120; Dell Unity Xt Operating Environment 5.3.0.0.5.120; DELL EMC UnityVSA Operating Environment 5.3.0.0.5.120. Check the vendor advisory for mitigations.

References

• https://www.dell.com/support/kbdoc/en-us/000213152/dsa-2023-141-dell-unity-unity-vsa-and-unity-xt-security-update-for-multiple-vulnerabilities
• https://www.dell.com/support/kbdoc/en-us/000213152/dsa-2023-141-dell-unity-unity-vsa-and-unity-xt-security-update-for-multiple-vulnerabilities

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