Local memory disclosure via crafted DNS packet
Published Aug 14, 2025 · Updated Aug 15, 2025
Out-of-bounds read in Netskope Client before 129 allows local users to expose memory through a crafted DNS packet on Windows. The client's DNS-packet processing reads beyond the intended buffer and places the resulting user-controllable bytes in a domain name stored locally. Exploitation has high complexity and additional conditions; some configurations require administrative privileges, and the disclosed consequence is limited to local memory exposure.
Summary
What happened
Out-of-bounds read in Netskope Client before 129 allows local users to expose memory through a crafted DNS packet on Windows. The client's DNS-packet processing reads beyond the intended buffer and places the resulting user-controllable bytes in a domain name stored locally. Exploitation has high complexity and additional conditions; some configurations require administrative privileges, and the disclosed consequence is limited to local memory exposure.
The record
- CVE
- CVE-2025-5941
- Published
- Aug 14, 2025
- Updated
- Aug 15, 2025
- Vendor
- Netskope
- Product
- Netskope Client
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 14, 2025CVE publishedPublication date reported by the CVE source.
- Aug 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=128.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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