Critical severity9.8NVD Advisory· Published Aug 21, 2023· Updated Jun 17, 2026
CVE-2023-31447
CVE-2023-31447
Description
user_login.cgi on Draytek Vigor2620 devices before 3.9.8.4 (and on all versions of Vigor2925 devices) allows attackers to send a crafted payload to modify the content of the code segment, insert shellcode, and execute arbitrary code.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- cpe:2.3:o:draytek:vigor2625_firmware:*:*:*:*:*:*:*:*
- Draytek/Vigor2620description
Patches
Vulnerability mechanics
References
2- gist.github.com/rrrrrrri/013c9eef64b265af4163478bfcf29ff4nvdThird Party Advisory
- draytek.comnvdProduct
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