CVE-2021-36080
HIGHCVSS 8.8/10EPSS 1.33%
Last modified
CVE-2021-36080 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).. EPSS estimates a 1.33% chance of exploitation in the next 30 days.
Description
GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Libredwg | >= 0.12.3.4163, <= 0.12.3.4191 |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/LibreDWG/libredwg/commit/9b6e0ff9ef02818df034fc42c3bd149a5ff89342Patch, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/LibreDWG/libredwg/commit/9b6e0ff9ef02818df034fc42c3bd149a5ff89342Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-36080?
GNU LibreDWG 0.12.3.4163 through 0.12.3.4191 has a double-free in bit_chain_free (called from dwg_encode_MTEXT and dwg_encode_add_object).
How severe is CVE-2021-36080?
CVE-2021-36080 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36080?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-36080?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST