No exploitation reportedFix available

CVE-2021-46158

No exploitation reported by the sources we read.

Published2022-02-09
WeaknessCWE-121 · CWE-1284

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application contains a stack based buffer overflow vulnerability while parsing NEU files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-15085, ZDI-CAN-15289, ZDI-CAN-15602)

Timeline

dates in UTC

2022-02-0916:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-46158?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-46158?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Siemens simcenter femap

Branch	Affected	Fixed in	Source
2020.2	= 2020.2	no fix published	NVD
2021.1	= 2021.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-041-03 CISA2 known affected
Siemens Simcenter Femap
Simcenter Femap V2020.2 · Simcenter Femap V2021.1

Full record on NVD

Fix

Vendor fix CISA ICSA-22-041-03 · 2 productsUpdate to V2022.1 or later version
Mitigation from the vendor CISA ICSA-22-041-03 · 2 productsDo not open untrusted NEU files in Simcenter Femap

Advisories and patches

cert-portal.siemens.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
CNAweakness (CWE)CWE-121read 2026-10-23
NVDweakness (CWE)CWE-1284read 2026-10-23
FIRST EPSSEPSS score1.8 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2022-02-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-46158?

Is CVE-2021-46158 actively exploited?

Active exploitation of CVE-2021-46158 has not been confirmed. Its EPSS score was 1.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-46158?

CVE-2021-46158 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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