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.
Published 2020-06-16 20:15:15
Updated 2022-01-31 19:43:34
View at NVD,   CVE.org
Vulnerability category: Bypass

Products affected by CVE-2020-7498

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

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