Adjacent privilege escalation via WLAN heap overflow
Published Oct 14, 2025 · Updated Oct 14, 2025
Heap overflow in MediaTek WLAN AP drivers allows remote attackers to escalate privileges on affected chipsets through adjacent access. The driver performs an incorrect bounds check and writes beyond a heap buffer; MediaTek has not disclosed the triggering field or code path. Exploitation requires proximity to the wireless network but no prior privileges or user interaction, and successful exploitation compromises confidentiality, integrity, and availability.
Summary
What happened
Heap overflow in MediaTek WLAN AP drivers allows remote attackers to escalate privileges on affected chipsets through adjacent access. The driver performs an incorrect bounds check and writes beyond a heap buffer; MediaTek has not disclosed the triggering field or code path. Exploitation requires proximity to the wireless network but no prior privileges or user interaction, and successful exploitation compromises confidentiality, integrity, and availability.
The record
- CVE
- CVE-2025-20712
- Published
- Oct 14, 2025
- Updated
- Oct 14, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-122, T1068
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 14, 2025CVE publishedPublication date reported by the CVE source.
- Oct 14, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
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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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