Netskope Client Endpoint DLP Kernel Driver Information Leakage
Summary
| CVE | CVE-2026-15710 |
|---|---|
| State | PUBLISHED |
| Assigner | Netskope |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-11 14:17:25 UTC |
| Updated | 2026-09-18 19:31:11 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 6.8 MEDIUM from [email protected]
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.001040000 probability, percentile 0.011580000 (date 2026-09-21)
Problem Types: CWE-908 | CWE-908 CWE-908 Use of uninitialized resource
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 6.8 | MEDIUM | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 6.8 | MEDIUM | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N |
CVSS v4.0 Breakdown
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Netskope | Endpoint DLP | affected R141 custom | Windows |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskps... | [email protected] | www.netskope.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Nuttakorn Tungpoonsup (KBTG Cybersecurity Research Engineer) (en)
CNA: Jirawat Siengphao (KBTG Cybersecurity Research Engineer) (en)
CNA: Khanatip Vanjongkham (KBTG Cybersecurity Research Engineer) (en)
CNA: Waris Damkham (KBTG Cybersecurity Research Engineer) (en)
Additional Advisory Data
Solutions
CNA: Upgrade Netskope Client for Windows to version R141 or later. Alternatively, apply backported maintenance patch builds R132.0.4.7307, R135.0.2.7298, or R138.0.0.7305 or above