Vulnerability Details : CVE-2021-27494
Datakit Software libraries CatiaV5_3dRead, CatiaV6_3dRead, Step3dRead, Ug3dReadPsr, Jt3dReadPsr modules in KeyShot Versions v10.1 and prior lack proper validation of user-supplied data when parsing STP files. This could result in a stack-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.
Vulnerability category: OverflowExecute code
Products affected by CVE-2021-27494
- cpe:2.3:o:siemens:solid_edge_se2020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:solid_edge_se2021_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:a:luxion:keyshot:*:*:*:*:*:*:*:*
- cpe:2.3:a:datakit:crosscadware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27494
0.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27494
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-27494
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: ics-cert@hq.dhs.gov (Primary)
References for CVE-2021-27494
-
https://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdf
Third Party Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-145-01
Datakit Libraries bundled in Luxion KeyShot | CISAThird Party Advisory;US Government Resource
-
https://www.zerodayinitiative.com/advisories/ZDI-21-564/
ZDI-21-564 | Zero Day InitiativeThird Party Advisory;VDB Entry
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