CVE-2021-34087 json
In Ultimaker S3 3D printer, Ultimaker S5 3D printer, Ultimaker 3 3D printer S-line through 6.3 and Ultimaker 3 through 5.2.16, the local we…
published 2022-01-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20750
- cvss
- 7.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
In Ultimaker S3 3D printer, Ultimaker S5 3D printer, Ultimaker 3 3D printer S-line through 6.3 and Ultimaker 3 through 5.2.16, the local webserver can be used for clickjacking. This includes the settings page.
Exploit prediction
0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-1021 Improper Restriction of Rendered UI Layers or Frames
References
-
ultimaker.com
/3d-printers/ultimaker-s3
product, vendor-advisory
-
ultimaker.com
/3d-printers/ultimaker-s5
product, vendor-advisory
-
kth.diva-portal.org
/smash/get/diva2:1623489/FULLTEXT01.pdf
technical-description, third-party-advisory
Sources
- CVE List CVE-2021-34087
- NVD CVE-2021-34087
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.