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CVE-2021-46153

25
FAUCET Score

CVE-2021-46153 is a memory corruption vulnerability affecting Siemens Simcenter Femap versions V2020.2 and V2021.1. This flaw occurs when parsing specially crafted NEU files, potentially allowing an attacker to execute arbitrary code within the context of the current user. Rated 7.8 HIGH on the CVSS scale, it requires user interaction (e.g., opening a malicious file) but has low attack complexity and can lead to full compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available, no evidence of active exploitation, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2020.2CPE matchmatch criteria
cpe:2.3:a:siemens:simcenter_femap:2020.2:-:*:*:*:*:*:*
2020.2CPE matchmatch criteria
cpe:2.3:a:siemens:simcenter_femap:2020.2:maintenance_pack1:*:*:*:*:*:*
2020.2CPE matchmatch criteria
cpe:2.3:a:siemens:simcenter_femap:2020.2:maintenance_pack2:*:*:*:*:*:*
2020.2CPE matchmatch criteria
cpe:2.3:a:siemens:simcenter_femap:2020.2:maintenance_pack3:*:*:*:*:*:*
2021.1CPE matchmatch criteria
cpe:2.3:a:siemens:simcenter_femap:2021.1:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.56%
Probability of exploitation in next 30 days
EPSS Percentile
72.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0156 is in the 71st percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-609880.pdf
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-22-297
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-22-298
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-22-299
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-22-300
Third Party AdvisoryVDB Entry