CVE-2025-0309

6.0 mediumEPSS 0.2%

Medium (6.0). EPSS 0.2% chance of exploitation in the next 30 days.

An insufficient validation on the server connection endpoint in Netskope Client allows local users to elevate privileges on the system. The insufficient validation allows Netskope Client to connect to any other server with Public Signed CA TLS certificates and send specially crafted responses to elevate privileges.

Severity

CVSS 4.0

6.0 medium

CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:H/SI:H/SA:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2025-08-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://blog.amberwolf.com/blog/2025/august/breaking-into-your-network-zer0-effort/
https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2025-002

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