CVE-2023-31447 is a critical vulnerability affecting Draytek Vigor2620 devices prior to firmware version 3.9.8.4 and all versions of Vigor2925 devices. This flaw allows unauthenticated attackers to send a specially crafted payload to the user_login.cgi endpoint, enabling the modification of code segments, injection of shellcode, and execution of arbitrary code on the device. With a CVSS score of 9.8 (Critical), the vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate patching for affected systems.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.9.8.4CPE matchmatch criteria | cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:draytek:vigor2625_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023Format string vulnerability (CVE-2023-31447)
Aug 23, 2023