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CVE-2022-43397

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-11-08 · updated 2026-06-17
• Weakness: CWE-787

Description

A vulnerability has been identified in Parasolid V34.0 (All versions < V34.0.252), Parasolid V34.1 (All versions < V34.1.242), Parasolid V35.0 (All versions < V35.0.170), Simcenter Femap (All versions < V2023.1). The affected application contains an out of bounds write past the end of an allocated buffer while parsing specially crafted X_T files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-17854)

Affected products

• Siemens Parasolid: from 34.0 before 34.0.252; from 34.1 before 34.1.242; from 35.0 before 35.0.170 — fixed in 34.0.252, 34.1.242, 35.0.170

How to fix

Upgrade to a fixed version: Siemens Parasolid 34.0.252, 34.1.242, 35.0.170. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-565356.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-853037.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-565356.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-853037.pdf

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