Local privilege escalation

published 2023-11-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54826

cvss: 6.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits: 0; none known

Netskope was made aware of a security vulnerability in its NSClient product for version 100 & prior where a malicious non-admin user can disable the Netskope client by using a specially-crafted package. The root cause of the problem was a user control code when called by a Windows ServiceController did not validate the permissions associated with the user before executing the user control code. This user control code had permissions to terminate the NSClient service.

Patch / fix

fixed in 1

netskope netskope 101

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-05)

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Netskope Netskope Client

Classification

Weakness

CWE-281 Improper Preservation of Permissions

References

netskope.com /company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskp
vendor-advisory

Sources

CVE List CVE-2023-4996
NVD CVE-2023-4996

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Summary