CVE-2023-31447

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-94

Affected software

Vendor	Product	Versions
n/a	n/a	n/a
draytek	vigor2620	< 3.9.8.4

References

https://draytek.comProduct
https://gist.github.com/rrrrrrri/013c9eef64b265af4163478bfcf29ff4Third Party Advisory
https://draytek.comProduct
https://gist.github.com/rrrrrrri/013c9eef64b265af4163478bfcf29ff4Third Party Advisory

Timeline

Published: Aug 21, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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