What is CVE-2026-22906?

CVE-2026-22906 is a critical-severity vulnerability in Wago 0852-1322, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2026-02-09.

How severe is CVE-2026-22906?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Wago 0852-1322

CVE-2026-22906

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 aut…

EPSS: 0.003 (24.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wago 0852-1322 — versions 0.0.0, 2.64
Wago 0852-1328 — versions 0.0.0, 2.64

Weakness classification (CWE)

CWE-321 — Use of Hard-coded Cryptographic Key

References

info@cert.vde.com

Frequently asked questions

What is CVE-2026-22906?: CVE-2026-22906 is a critical-severity vulnerability in Wago 0852-1322, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2026-02-09.
How severe is CVE-2026-22906?: Critical severity. CVSS v3 base score is 9.8 out of 10.