CVE-2021-27399

Description

A vulnerability has been identified in Simcenter Femap 2020.2 (All versions < V2020.2.MP3), Simcenter Femap 2021.1 (All versions < V2021.1.MP3). The femap.exe application lacks proper validation of user-supplied data when parsing FEMAP files. This could result in an out of bounds write past the end of an allocated structure, a different vulnerability than CVE-2021-27387. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12820)

References

Link	Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-133038.pdf	patch vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-781/	third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2021-27399?: CVE-2021-27399 has been scored as a high severity vulnerability.
How to fix CVE-2021-27399?: To fix CVE-2021-27399, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27399 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-27399 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27399?: CVE-2021-27399 affects Siemens Simcenter Femap 2020.2, Siemens Simcenter Femap 2021.1.

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Description

Category

CWE-787 – Out-of-bounds Write

References

Frequently Asked Questions