CVE-2021-31343
No exploitation reported by the sources we read.
- Published2021-06-08
- Fixed in2020mp14
- WeaknessCWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The jutil.dll library in all versions of Solid Edge SE2020 before 2020MP14 and all versions of Solid Edge SE2021 before SE2021MP5 lack proper validation of user-supplied data when parsing DFT files. This could result in an out-of-bounds write past the end of an allocation structure. An attacker could leverage this vulnerability to execute code in the context of the current process.
Timeline
dates in UTC- 2021-06-0820:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-31343?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-31343?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2020.x | < 2020mp14 | 2020mp14 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | < se2021mp5 | se2021mp5 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Siemens Solid Edge
Solid Edge SE2020 · Solid Edge SE2021
Fix
- Update Siemens solid edge se2020 firmware to 2020mp14
- Vendor fix CISA ICSA-21-159-09 · 1 productUpdate to 2020MP14 or later version
- Vendor fix CISA ICSA-21-159-09 · 1 productUpdate to SE2021MP5 or later version
- Mitigation from the vendor CISA ICSA-21-159-09 · 2 productsAvoid to open untrusted files from unknown sources in Solid Edge
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.18.8read 2026-10-23
- NVDCVSS 2.06.8read 2026-10-23
- CNAweakness (CWE)CWE-787read 2026-10-23
- FIRST EPSSEPSS score2.5 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2021-06-08
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-31343?
Is CVE-2021-31343 actively exploited?
What is the CVSS score for CVE-2021-31343?
Running Siemens Solid Edge? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.