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CVE-2021-41533

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-28 · updated 2026-06-17
• Weakness: CWE-125

Description

A vulnerability has been identified in NX 1980 Series (All versions < V1984), Solid Edge SE2021 (All versions < SE2021MP8). The affected application is vulnerable to an out of bounds read past the end of an allocated buffer when parsing JT files. An attacker could leverage this vulnerability to leak information in the context of the current process (ZDI-CAN-13565).

Affected products

• Siemens Nx 1984 Firmware: before 1984 — fixed in 1984
• Siemens Nx 1988 Firmware: before 1984 — fixed in 1984
• Siemens Solid Edge SE2021: before se2021; se2021, se2021-maintenance_pack1, se2021-maintenance_pack2, se2021-maintenance_pack3, se2021-maintenance_pack4, se2021-maintenance_pack5 (+2) — fixed in se2021

How to fix

Upgrade to a fixed version: Siemens Nx 1984 Firmware 1984; Siemens Nx 1988 Firmware 1984; Siemens Solid Edge SE2021 se2021. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-728618.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-740908.pdf
• https://www.zerodayinitiative.com/advisories/ZDI-21-1117/
• https://cert-portal.siemens.com/productcert/pdf/ssa-728618.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-740908.pdf
• https://www.zerodayinitiative.com/advisories/ZDI-21-1117/

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