CVE-2021-27041
No exploitation reported by the sources we read.
- Published2021-06-25
- Fixed in2022.0.1 · 2021.1.1 · 2020.1.4 · 2019.1.3
- 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
A maliciously crafted DWG file can be used to write beyond the allocated buffer while parsing DWG files. This vulnerability can be exploited to execute arbitrary code
Timeline
dates in UTC- 2021-06-2513:15CVE 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-2021-27041?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27041?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 |
|---|---|---|---|
| 2022.x | ≥ 2022, < 2022.0.1 | 2022.0.1 | NVD |
| 2021.x | ≥ 2021, < 2021.1.1 | 2021.1.1 | NVD |
| 2020.x | ≥ 2020, < 2020.1.4 | 2020.1.4 | NVD |
| 2019.x | ≥ 2019, < 2019.1.3 | 2019.1.3 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2022.x | ≥ 2022, < 2022.0.1 | 2022.0.1 | NVD |
| 2021.x | ≥ 2021, < 2021.1.1 | 2021.1.1 | NVD |
| 2020.x | ≥ 2020, < 2020.1.4 | 2020.1.4 | NVD |
| 2019.x | ≥ 2019, < 2019.1.3 | 2019.1.3 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2021.x | ≥ 2021, < 2021.1.1 | 2021.1.1 | NVD |
| 2020.x | ≥ 2020, < 2020.1.4 | 2020.1.4 | NVD |
| 2019.x | ≥ 2019, < 2019.1.3 | 2019.1.3 | NVD |
| 2022.x | ≥ 2022, ≤ 2022.0.1 | no fix published | NVD |
10 more products 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
ICONICS GENESIS64 and Mitsubishi Electric MC Works64
GENESIS64: (all versions up to and including 10.97) · MC Works64: (all version of MC Works64 up to and including Version 4.04E)
Fix
- Update Autodesk advance steel to 2022.0.1 · 2021.1.1 · 2020.1.4 · 2019.1.3
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsICONICS and Mitsubishi Electric are releasing Critical Fix Rollups or patches for these products. GENESIS64 Version 10.97.1 and later will not be vulnerable to this exploit.
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsUse a firewall. Place control system networks and devices behind firewalls and isolate them from the business network.
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsMinimize network exposure for all control system devices. Control system devices should not directly face the Internet.
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsDo not click web links or open unsolicited attachments in email messages.
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsWhen importing any AutoCad DWG file, make sure it is known to come from a trusted source.
- Mitigation from the vendor CISA ICSA-21-294-01 · 2 productsInstall the applicable Critical Fix Rollup, when available.
Advisories and patches
- www.autodesk.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-787read 2026-10-23
- FIRST EPSSEPSS score1.7 %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
- 2021-06-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27041?
Is CVE-2021-27041 actively exploited?
What is the CVSS score for CVE-2021-27041?
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