CVE-2021-25176
No exploitation reported by the sources we read.
- Published2021-01-18
- Fixed in2021.11
- WeaknessCWE-476
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
An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A NULL pointer dereference exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart).
Timeline
dates in UTC- 2021-01-1808:15CVE 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-2021-25176?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-25176?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 |
|---|---|---|---|
| 2021.11 | < 2021.11 | 2021.11 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 10.4 | < 10.4.1 | 10.4.1 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 13.1 | < 13.1.0.1 | 13.1.0.1 | NVD |
1 more product in the sources.
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 COMOS
COMOS
Open Design Alliance Drawings SDK (Update A)
JT2Go · Teamcenter Visualization
Fix
- Update Opendesign drawings software development kit to 2021.11
- Vendor fix CISA ICSA-22-069-06 · 1 productUpdate to V10.4.1 or later version
- Vendor fix CISA ICSA-21-047-01 · 1 productUpdate to V13.1.0.1 or later version
- Mitigation from the vendor CISA ICSA-22-069-06 · 1 productAvoid to open untrusted files from unknown sources in COMOS
- Mitigation from the vendor CISA ICSA-21-047-01 · 2 productsAvoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization
Advisories and patches
- cert-portal.siemens.comPatch
- cert-portal.siemens.comPatch
- www.opendesign.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.8read 2026-10-23
- NVDCVSS 2.06.8read 2026-10-23
- NVDweakness (CWE)CWE-476read 2026-10-23
- FIRST EPSSEPSS score2.3 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2021-01-18
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-25176?
Is CVE-2021-25176 actively exploited?
What is the CVSS score for CVE-2021-25176?
Running Open Design Alliance Drawings? 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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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.