Auth bypass in Wago 750-831
CVE-2020-12505
Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx-xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.012 (69.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Wago 750-831
- Wago 750-831 Firmware
- Wago 750-831/xxx-Xxx — versions unspecified
- Wago 750-852 — versions unspecified
- Wago 750-852 Firmware
- Wago 750-880
- Wago 750-880 Firmware
- Wago 750-880/xxx-Xxx — versions unspecified
- Wago 750-881 — versions unspecified
- Wago 750-881 Firmware
Weakness classification (CWE)
References
- cert.vde.com/en-us/advisories/vde-2020-027 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12505?
- CVE-2020-12505 is a high-severity vulnerability in Wago 750-831, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2020-09-30.
- How severe is CVE-2020-12505?
- High severity. CVSS v3 base score is 8.2 out of 10.