CVE-2020-11536
CRITICALCVSS 9.8/10EPSS 2.59%
Last modified
CVE-2020-11536 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.
Description
An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Onlyoffice | Document Server | 5.5.0 |
References
- https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0Third Party Advisory
- https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551Release Notes, Third Party Advisory
- https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0Third Party Advisory
- https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551Release Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-11536?
An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.
How severe is CVE-2020-11536?
CVE-2020-11536 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.
How do I fix CVE-2020-11536?
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-2020-11536?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST