CVE-2020-13775
MEDIUMCVSS 6.5/10EPSS 1.85%
Last modified
CVE-2020-13775 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.. EPSS estimates a 1.85% chance of exploitation in the next 30 days.
Description
ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Znc | Znc | 1.8.0 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
References
- https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8Patch, Third Party Advisory
- https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001Patch, Third Party Advisory
- https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8Patch, Third Party Advisory
- https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-13775?
ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.
How severe is CVE-2020-13775?
CVE-2020-13775 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.
How do I fix CVE-2020-13775?
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-2020-13775?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST