Auth bypass in Schneider-Electric C-Gate Server

CVE-2021-22796

A CWE-287: Improper Authentication vulnerability exists that could allow remote code execution when a malicious file is uploaded. Affected Product: C-Bus Toolkit (V1.15.9 and prior), C-Gate Server (V2.11.7 and prior)

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-22796: held from 0.012 to 0.012.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

  • Schneider-Electric C-Gate Server
  • C-Bus Toolkit (V1.15.9 And Prior), C-Gate Server (V2.11.7 Prior) — versions C-Bus Toolkit (V1.15.9 and prior), C-Gate Server (V2.11.7 and prior)

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22796?
CVE-2021-22796 is a high-severity vulnerability in Schneider-Electric C-Gate Server, classified under Improper Authentication. CVSS score: 7.8/10. Published 2022-02-11.
How severe is CVE-2021-22796?
High severity. CVSS v3 base score is 7.8 out of 10.