Vulnerability · Published Jun 8, 2021 · Assigned by siemens

CVE-2021-27399

High 7.8

In plain English

A high-severity out-of-bounds write in Simcenter Femap 2020.2 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.3%top 28.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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)

Affected products (as reported)

Vendor	Product	Versions
Siemens	Simcenter Femap 2020.2	All versions < V2020.2.MP3
Siemens	Simcenter Femap 2021.1	All versions < V2021.1.MP3

Weakness: CWE-787

References

https://cert-portal.siemens.com/productcert/pdf/ssa-133038.pdf x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-21-781/ x_refsource_MISC