What’s Vulnerable › Vulnerabilities

CVE-2021-42711

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-01 · updated 2026-06-17
• Weakness: CWE-276

Description

Barracuda Network Access Client before 5.2.2 creates a Temporary File in a Directory with Insecure Permissions. This file is executed with SYSTEM privileges when an unprivileged user performs a repair operation.

Affected products

• Barracuda Network Access Client: before 5.2.2 — fixed in 5.2.2

How to fix

Upgrade to a fixed version: Barracuda Network Access Client 5.2.2. Check the vendor advisory for mitigations.

References

• https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0010/MNDT-2021-0010.md
• https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0010/MNDT-2021-0010.md

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