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CVE-2021-27490

24
FAUCET Score

CVE-2021-27490 describes an out-of-bounds read vulnerability in Datakit Software libraries, specifically within CatiaV5_3dRead, CatiaV6_3dRead, Step3dRead, Ug3dReadPsr, and Jt3dReadPsr modules, affecting KeyShot versions v10.1 and prior, as well as products from Datakit and Siemens. This vulnerability carries a high CVSS score of 7.8, indicating a significant risk where an attacker could execute arbitrary code with high impact on confidentiality, integrity, and availability, requiring user interaction but with low attack complexity. While the EPSS score is low, suggesting a low probability of exploitation, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2021.1CPE matchmatch criteria
cpe:2.3:a:datakit:crosscadware:*:*:*:*:*:*:*:*
<= 10.1CPE matchmatch criteria
cpe:2.3:a:luxion:keyshot:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:siemens:solid_edge_se2020_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:siemens:solid_edge_se2021_firmware:*:*:*:*:*:*:*:*

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
2.03%
Probability of exploitation in next 30 days
EPSS Percentile
79.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 78th percentile among its peer group of 11,616 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-119468.pdf
Third Party Advisory
us-cert.cisa.gov / ics/advisories/icsa-21-145-01
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-21-566
Third Party AdvisoryVDB Entry