Vulnerability Details : CVE-2020-7498
A CWE-798: Use of Hard-coded Credentials vulnerability exists in the Unity Loader and OS Loader Software (all versions). The fixed credentials are used to simplify file transfer. Today the use of fixed credentials is considered a vulnerability, which could cause unauthorized access to the file transfer service provided by the Modicon PLCs. This could result in various unintended results.
Vulnerability category: Bypass
Products affected by CVE-2020-7498
- cpe:2.3:a:schneider-electric:os_loader:*:*:*:*:*:*:*:*
- cpe:2.3:a:schneider-electric:unity_loader:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-7498
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-7498
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-7498
-
The product contains hard-coded credentials, such as a password or cryptographic key.Assigned by:
- cybersecurity@se.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2020-7498
-
https://www.se.com/ww/en/download/document/SEVD-2020-161-02
Security Notification - Unity Loader and OS Loader Software | Schneider ElectricVendor Advisory
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