What’s Vulnerable › Vulnerabilities

CVE-2021-41388

• 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: 2022-01-04 · updated 2026-06-17
• Weakness: CWE-269

Description

Netskope client prior to 89.x on macOS is impacted by a local privilege escalation vulnerability. The XPC implementation of nsAuxiliarySvc process does not perform validation on new connections before accepting the connection. Thus any low privileged user can connect and call external methods defined in XPC service as root, elevating their privilege to the highest level.

Affected products

• Netskope Client: before 89 — fixed in 89

How to fix

Upgrade to a fixed version: Netskope Client 89. Check the vendor advisory for mitigations.

References

• https://www.netskope.com/company/security-compliance-and-assurance/netskope-security-advisory-nskpsa-2021-002
• https://www.netskope.com/company/security-compliance-and-assurance/netskope-security-advisory-nskpsa-2021-002

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