CVE-2026-15710
CVE-2026-15710 — Netskope Client Endpoint DLP Kernel Driver Information Leakage
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.
Published Updated Sources: NVD, Netskope (CNA), GitHub, GitHub Security Advisory, SOCRadar CTI
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Exploit code
public exploit, none observed
EPSS
0%
ahead of 0% of scored CVEs
CVSS base
6.8
medium
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Remediation
The vendor's own words where we have them.
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
First 24 hours
Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.
- Identify exposed assets running affected vendor/product/version combinations.
- Prioritize based on EPSS, PoC availability, and external exposure.
- Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.
Affected scope
Vendor, product and version as the advisories word them.
| Vendor | Product | Versions | Status |
|---|---|---|---|
| Netskope | Endpoint DLP | 0 | Vulnerable |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Attack Complexity
Low
Attack Vector
Local
Privileges Req
Low
User Interaction
None
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 6.8 | CVSS 4.0 | medium | — | — | Netskope (CNA) |
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
What this weakness leads to
MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.
CWE-908 · Use of Uninitialized Resource
- Read Memory
- Read Application Data
- DoS: Crash, Exit, or Restart
Mitigation: Explicitly initialize the resource before use. If this is performed through an API function or standard procedure, follow all required steps.
Weakness & attack patterns
- CWE-908
Inferred from the weakness class — not observed against this CVE.
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Repositories
6
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Monitor for scanner or exploit-pattern traffic after 6 public PoC repositories were reported.
Timeline
What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.
- 2026
Added · CVSS 3.1 6.8 (AV:L)
Sep 11, 2026 · NVD
Initial · CVE published
Sep 11, 2026 · NVD
Added · GHSA-5gwh-rfcj-mvh7 published (medium)
Sep 11, 2026 · GitHub Security Advisory
CVE published by MITRE.
Sep 11, 2026 · SOCRadar CTI
References
3 on the record
- www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2026-006
Vendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2026-15710
NVD
- github.com/advisories/GHSA-5gwh-rfcj-mvh7
Exploit, Third Party Advisory
Elsewhere on this site
- Netskopeevery CVE for this vendor
- Memory Corruptionsame class
- CWE-908other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1
What should defenders know first?
CVE-2026-15710 is Netskope Client Endpoint DLP Kernel Driver Information Leakage, a medium vulnerability affecting Endpoint DLP from Netskope. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-15710. Public exploit evidence is: 6 public PoC repositories reported; 0 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 6.8 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.