Wago 0852 1322 vulnerabilities

6 vulnerabilities

Known vulnerabilities in Wago 0852 1322, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

9.8CVE-2025-41730wago0852-1322_firmware+2
EPSS score
0.43%
An unauthenticated remote attacker can abuse unsafe sscanf calls within the check_account() function to write arbitrary data into fixed-size stack buffers which leads to full device compromise.
9.8CVE-2025-41732wago0852-1322_firmware+2
EPSS score
0.43%
An unauthenticated remote attacker can abuse unsafe sscanf calls within the check_cookie() function to write arbitrary data into fixed-size stack buffers which leads to full device compromise.
9.8CVE-2026-22904wago0852-1322_firmware+1
EPSS score
0.63%
Improper length handling when parsing multiple cookie fields (including TRACKID) allows an unauthenticated remote attacker to send oversized cookie values and trigger a stack buffer overflow, resulting in a denial‑of‑service condition and possible remote code execution.
7.5CVE-2026-22905wago0852-1322_firmware+1
EPSS score
0.70%
An unauthenticated remote attacker can bypass authentication by exploiting insufficient URI validation and using path traversal sequences (e.g., /js/../cgi-bin/post.cgi), gaining unauthorized access to protected CGI endpoints and configuration downloads.
9.8CVE-2026-22906wago0852-1322_firmware+1
EPSS score
0.36%
User credentials are stored using AES‑ECB encryption with a hardcoded key. An unauthenticated remote attacker obtaining the configuration file can decrypt and recover plaintext usernames and passwords, especially when combined with the authentication bypass.
9.8CVE-2026-22903wago0852-1322_firmware+1
EPSS score
0.76%
An unauthenticated remote attacker can send a crafted HTTP request containing an overly long SESSIONID cookie. This can trigger a stack buffer overflow in the modified lighttpd server, causing it to crash and potentially enabling remote code execution due to missing stack protections.