Vulnerability · Published Jan 11, 2022 · Assigned by siemens

CVE-2021-41769

High 7.5

In plain English

A high-severity improper input validation in SIPROTEC 5 6MD85 devices (CPU variant CP300) from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.0%top 37.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in SIPROTEC 5 6MD85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MD86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MD89 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MU85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7KE85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SA82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SA86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SA87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SD82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SD86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SD87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SJ81 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SJ82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SJ85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SJ86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SK82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SK85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SL82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SL86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SL87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SS85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7ST85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SX85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UM85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7UT85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7VE85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7VK87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 Compact 7SX800 devices (CPU variant CP050) (All versions < V8.83). An improper input validation vulnerability in the web server could allow an unauthenticated user to access device information.

Affected products (as reported)

VendorProductVersions
Siemens SIPROTEC 5 6MD85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 6MD86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 6MD89 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 6MU85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7KE85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SA82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SA86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SA87 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SD82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SD86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SD87 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SJ81 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SJ82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SJ85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SJ86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SK82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SK85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SL82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7SL86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SL87 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SS85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7ST85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7SX85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7UM85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7UT82 devices (CPU variant CP100) All versions < V8.83
Siemens SIPROTEC 5 7UT85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7UT86 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7UT87 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7VE85 devices (CPU variant CP300) All versions < V8.83
Siemens SIPROTEC 5 7VK87 devices (CPU variant CP300) All versions < V8.83

Weakness: CWE-20

References