Code execution via arbitrary APP Enforcement module upload
Published Feb 27, 2025 · Updated Jul 5, 2026
Unrestricted upload in DrayTek Vigor router firmware allows attackers to execute arbitrary kernel code through APP Enforcement updates. The updater accepts arbitrary APP Enforcement signatures even though those signatures are implemented as kernel modules, causing attacker-supplied module code to load in the router kernel. Exploitation requires local access to the update path; a successful upload executes with kernel privileges and can fully compromise the router.
Summary
What happened
Unrestricted upload in DrayTek Vigor router firmware allows attackers to execute arbitrary kernel code through APP Enforcement updates. The updater accepts arbitrary APP Enforcement signatures even though those signatures are implemented as kernel modules, causing attacker-supplied module code to load in the router kernel. Exploitation requires local access to the update path; a successful upload executes with kernel privileges and can fully compromise the router.
The record
- CVE
- CVE-2024-41340
- Published
- Feb 27, 2025
- Updated
- Jul 5, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-434, T1547.006
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 27, 2025CVE publishedPublication date reported by the CVE source.
- Jul 5, 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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