CVE-2021-31889 vulnerability in Siemens Products
Published on November 9, 2021
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)
Weakness Type
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2021-31889 has been classified to as an Integer underflow vulnerability or weakness.
Products Associated with CVE-2021-31889
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Affected Versions
Siemens Capital Embedded AR Classic 431-422:- Before * is affected.
- Before V2303 is affected.
- Version All versions is affected.
- Version All versions < V0.5.0.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.