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CVE-2021-21772A use-after-free vulnerability exists in the NMR::COpcPackageReader::releaseZIP() functionality of 3MF Consortium lib3mf 2.0.0. A…
- 8.1HighCVSS base score
- 4.2%Exploitation in 30 daysEPSS · top 9.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A use-after-free vulnerability exists in the NMR::COpcPackageReader::releaseZIP() functionality of 3MF Consortium lib3mf 2.0.0. A specially crafted 3MF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Timeline
ID reserved
By talos
- 2 months later
· 2 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| talosCNA (assigner) | 3.0 | High8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.2% · top 9.0% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
3MF
- affected 3MF Consortium lib3mf 2.0.0
References
References7
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1226 (opens in a new tab)x_transferred
- FEDORA-2021-bb1b7591c4 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2021-6945629745 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2021-b73f9c96ee (opens in a new tab)vendor-advisoryx_transferred
- DSA-4887 (opens in a new tab)vendor-advisoryx_transferred
- GLSA-202208-01 (opens in a new tab)vendor-advisoryx_transferred
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1226 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-8944 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2021-21772)Record last updated .