Kernel memory exhaustion via unbounded procfs allocation
Published Feb 3, 2026 · Updated Feb 3, 2026
Resource exhaustion in Samsung Exynos Wi-Fi drivers allows local users to exhaust kernel memory through a crafted procfs write. The /proc/driver/unifi0/ap_certif_11ax_mode write operation accepts a large requested buffer and allocates kernel memory without enforcing a size bound. Local low-privileged access to the writable procfs interface is required, and successful exploitation disrupts device operation by depleting kernel memory.
Summary
What happened
Resource exhaustion in Samsung Exynos Wi-Fi drivers allows local users to exhaust kernel memory through a crafted procfs write. The /proc/driver/unifi0/ap_certif_11ax_mode write operation accepts a large requested buffer and allocates kernel memory without enforcing a size bound. Local low-privileged access to the writable procfs interface is required, and successful exploitation disrupts device operation by depleting kernel memory.
The record
- CVE
- CVE-2025-58345
- Published
- Feb 3, 2026
- Updated
- Feb 3, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-770, T1499.003
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 3, 2026CVE publishedPublication date reported by the CVE source.
- Feb 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Published CVSS scores
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Attacks
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Technologies
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