VulnerabilityPublished 17 Mar 2026

CVE-2025-15584: Endpoint DLP Module for Netskope Client · Integer Overflow or Wraparound

Affects Endpoint DLP Module for Netskope ClientSource CVE Database V5

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Not known to be exploited · CVSS 6.8 Medium : upgrade to 135.0.0 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

6.8Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 135.0.0

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector: Local
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: High
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: High: There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the Vulnerable System; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the Vulnerable System (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Endpoint DLP Module for Netskope Client to 135.0.0.

Affected software

Product	Affected	Fixed in
NetskopeEndpoint DLP Module for Netskope Client	Affected <135.0.0	Fixed in 135.0.0

AI-suggested

To mitigate CVE-2025-15584, organizations should implement the following specific measures: 1) Restrict local user access on Windows endpoints to trusted personnel only, minimizing the risk of unprivileged users triggering the overflow. 2) Disable the Netskope Endpoint DLP module on clients where it is not strictly required, reducing the attack surface. 3) Monitor system logs and endpoint stability for signs of unexpected BSODs or crashes that could indicate exploitation attempts. 5) Employ endpoint protection solutions that can detect abnormal local user behavior or attempts to exploit kernel-level vulnerabilities. 6) Conduct regular security awareness training to reduce the risk of attackers gaining local access through social engineering or credential compromise. 7) Consider network segmentation and least privilege principles to limit lateral movement opportunities that could lead to local access on vulnerable endpoints. These targeted actions go beyond generic advice by focusing on reducing local user risk and preparing for timely patch deployment.

Description

CVE-2025-15584 is an integer overflow vulnerability in the Netskope Endpoint DLP Module for Windows clients. An unprivileged local user can exploit this flaw by triggering an integer overflow in the filter communication port, causing a Blue Screen of Death (BSOD) and resulting in a denial-of-service condition. Exploitation requires the Endpoint DLP module to be enabled and does not require user interaction or elevated privileges beyond local user access. The vulnerability has a CVSS 4.0 base score of 6.8, indicating medium severity. There are no known exploits in the wild currently, and no patches have been published yet. The impact is primarily local denial-of-service, affecting system availability but not confidentiality or integrity. Mitigation involves restricting local user access, disabling the Endpoint DLP module if not needed, and applying patches once available.

Impact

The primary impact of CVE-2025-15584 is a denial-of-service condition on Windows endpoints running the Netskope Endpoint DLP module. Successful exploitation causes a system crash (BSOD), leading to loss of availability of the affected machine. This can disrupt user productivity and potentially impact business operations, especially in environments where endpoint DLP is critical for data protection and compliance. Since the exploit requires local access, the risk is higher in environments where multiple users share machines or where attackers can gain local user access through other means (e.g., phishing, lateral movement). The vulnerability does not compromise confidentiality or integrity, so data theft or modification is not directly possible via this flaw. However, repeated or targeted DoS attacks could degrade endpoint security posture or cause operational disruptions. Organizations relying heavily on Netskope Endpoint DLP for regulatory compliance or data protection may face increased risk of operational impact.

CWE-190Integer Overflow or Wraparound (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V5.4.3 (opens in a new tab)
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
Attack patterns
Forced Integer Overflow (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

support.netskope.com/s/article/NSKPSA-2025-006-Endpoint-DLP-Driver-Filter-Communication-Port-Integer-Overflow (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Mar 2026, 01:10 UTC

WeaknessesCWE-190

Technical details

References

Community reviews

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