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CVE-2025-5941VulnerabilityPublished Updated

CVE-2025-5941: Netskope Client · Out-of-Bounds Read

Affects Netskope ClientSource CVE Database V5

0

Not known to be exploited · CVSS 2.0 Low.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
2.0Low
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.
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Netskope Netskope ClientAffected
  • =0
Fixed in–

AI-suggested

Given the absence of an official patch, European organizations should implement several targeted mitigations: 1) Restrict administrative privileges on endpoints running the Netskope Client to minimize the risk of exploitation. 2) Monitor and audit DNS traffic and logs for unusual or malformed DNS packets that could indicate attempts to exploit this vulnerability. 3) Employ endpoint detection and response (EDR) solutions to detect anomalous memory access patterns or suspicious behavior related to the Netskope Client process. 4) Coordinate with Netskope support to obtain any available workarounds or beta patches and plan for prompt deployment once official fixes are released. 5) Harden endpoint configurations by disabling unnecessary services or features within the Netskope Client that process DNS data if feasible. 6) Educate IT and security teams about the vulnerability to ensure rapid incident response if exploitation attempts are detected.

Description

Netskope is notified about a potential gap in its agent (NS Client) in which a malicious actor could trigger a memory leak by sending a crafted DNS packet to a machine. A successful exploitation may require administrative privileges on the machine, based on the exact configuration. A successful exploit can potentially result in user-controllable memory being leaked in a domain name stored on the local machine.

References

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