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CVE-2021-40355

26
FAUCET Score

CVE-2021-40355 is an Insecure Direct Object Reference (IDOR) vulnerability affecting multiple versions of Siemens Teamcenter, specifically V12.4, V13.0, V13.1, and V13.2. This flaw allows an authenticated attacker to manipulate user-supplied input to directly access unauthorized objects, leading to potential compromise of confidentiality, integrity, and availability. With a CVSS score of 8.8 (High), it presents a significant risk due to its low attack complexity and the potential for complete compromise of affected systems. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.4.0, < 12.4.0.8CPE matchmatch criteria
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*
>= 13.0.0, < 13.0.0.7CPE matchmatch criteria
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*
>= 13.1.0, < 13.1.0.5CPE matchmatch criteria
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*
>= 13.2.0, < 13.2.0.2CPE matchmatch criteria
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 47th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-987403.pdf
PatchVendor Advisory