CVE-2020-25014 is a critical stack-based buffer overflow vulnerability affecting Zyxel UTM and VPN series gateways running firmware versions V4.30 through V4.55. This flaw allows remote, unauthenticated attackers to execute arbitrary code by sending a specially crafted HTTP packet to the fbwifi_continue.cgi script. With a CVSS score of 9.8 (Critical), it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential interest from threat actors.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.30, <= 4.55CPE matchmatch criteria | cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* | ||
<= 6.10CPE matchmatch criteria | cpe:2.3:o:zyxel:access_points_firmware:*:*:*:*:*:*:*:* | ||
6.10CPE matchmatch criteria | cpe:2.3:o:zyxel:access_points_firmware:6.10:-:*:*:*:*:*:* | ||
6.10CPE matchmatch criteria | cpe:2.3:o:zyxel:access_points_firmware:6.10:patch1:*:*:*:*:*:* | ||
6.10CPE matchmatch criteria | cpe:2.3:o:zyxel:access_points_firmware:6.10:patch2:*:*:*:*:*:* |
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.
Remediation records are not available for this CVE.