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CVE-2020-26991

28
FAUCET Score

CVE-2020-26991 is a high-severity vulnerability affecting Siemens JT2Go and Teamcenter Visualization versions prior to V13.1.0.2. It stems from improper validation of user-supplied data in ASM files, leading to pointer dereferences and potential arbitrary code execution in the context of the current process. The CVSS score of 8.8 indicates a high impact on confidentiality, integrity, and availability, with a network-based attack requiring user interaction. While there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable. However, the vulnerability has garnered significant community discussion and media coverage, suggesting awareness among researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 13.1.0.2CPE matchmatch criteria
cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:*
< 13.1.0.2CPE 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:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
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
3.99%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0399 is in the 89th percentile among its peer group of 14,855 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-622830.pdf
Vendor Advisory
cert-portal.siemens.com / productcert/pdf/ssa-663999.pdf
PatchVendor Advisory
cert-portal.siemens.com / productcert/pdf/ssa-695540.pdf
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-21-053
Third Party AdvisoryVDB Entry