TI-2025-05368 Aliases CVE-2025-5942 GHSA-wwxh-p9hv-8wfx

Heap Overflow in Netskope Endpoint DLP Driver

LOW 25CWE-122Published 2025-08-14 · Updated 2025-08-18

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Netskope was notified about a potential gap in its agent (NS Client) on Windows systems. If this gap is successfully exploited, an unprivileged user can trigger a heap overflow in the epdlpdrv.sys driver, leading to a Blue-Screen-of-Death (BSOD). Successful exploitation can also potentially be performed by an unprivileged user whose NS Client is configured to use Endpoint DLP. A successful exploit can result in a denial-of-service for the local machine.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00145 3rd percentileScored 2026-11-07

Fix Fixed Netskope Client (Netskope): 126.0.9, 129.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Netskope	Netskope Client	before 126.0.9, 129.0.0	126.0.9, 129.0.0	Patch available	CNA

Netskope Client VendorNetskope Affected before 126.0.9, 129.0.0 Fixed in 126.0.9, 129.0.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:netskope:netskope::::::::	—	—	Netskope

cpe:2.3:a:netskope:netskope:*:*:*:*:*:*:*:* Versions — — ·Netskope

Remediation

Fix · CNA Netskope Client (Netskope) Fixed in 126.0.9, 129.0.0

Timeline

2026-10-02 Threatist record created from CVE-2025-5942
2026-10-03 Alias added: GHSA-wwxh-p9hv-8wfx

References

Advisory 1

https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2025-003

TI-2020-15056 Netskope Client through 77 allows low-privileged users to elevate their privileges to NT AUTHORITY\SYSTEM. CVSS 3.1HIGH 8.8
TI-2026-13525 Netskope Endpoint DLP Driver Integer Overflow Leading to Kernel Pool Overflow CVSS 4.0HIGH 8.7
TI-2024-06860 Client Enrollment Process Bypass CVSS 4.0HIGH 8.5
TI-2023-04599 Local privilege escalation in Netskope Client CVSS 3.1HIGH 8.8
TI-2021-20302 Sensitive Information store in NSClient logs CVSS 3.1HIGH 8.4
TI-2023-02129 Local privilege escalation in Netskope Client CVSS 3.1HIGH 7.8

See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences