Netskope Client Endpoint DLP Kernel Driver Information Leakage
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-908 and the CVSS impact.
Summary
An information leakage vulnerability exists in the Endpoint DLP component (epdlpdrv.sys) of Netskope Client for Windows prior to version R141. An internal communication channel used by the user-space hook DLL to pass messages through the kernel driver to the daemon lacked proper token-based message validation, allowing local unprivileged processes to send unauthorized queries. Additionally, a reply buffer used by the port message handler was not properly initialized before returning data, leaking residual kernel pool memory from prior allocations. A local unprivileged attacker could exploit this vulnerability to enumerate DLP configuration and feature flags, extract live session tokens, and read kernel memory fragments from other users' operations.
Why it matters now
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
Remediation
- Fix · CNA Endpoint DLP (Netskope) Fixed in R141
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15710
- 2026-10-03 Alias added: GHSA-5gwh-rfcj-mvh7
References
More Netskope vulnerabilities
- 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
Sources
- CVE-2026-15710 · CVE Program
- CVE-2026-15710 · NVD
- FIRST EPSS
- GHSA-5gwh-rfcj-mvh7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences