An issue was discovered in iXsystems FreeNAS (and TrueNAS) 11.2 before 11.2-u8 and 11.3 before 11.3-U1. It allows a denial of service. The login authentication component has no limits on the length of an authentication message or the rate at which such messages are sent.
CVE-2020-11650
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 11.9%, top 6% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 85.6%
- KEV
- Not listed
Published
April 8, 2020
Last Modified
November 21, 2024
References (4)
- cve@mitrehttps://jira.ixsystems.com/browse/NAS-104748
- cve@mitrehttps://security.ixsystems.com/cves/2020-04-08-cve-2020-11650/
- af854a3a-2127-422b-91ae-364da2661108https://jira.ixsystems.com/browse/NAS-104748
- af854a3a-2127-422b-91ae-364da2661108https://security.ixsystems.com/cves/2020-04-08-cve-2020-11650/
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-05-27 05:20 UTCEG score recompute
- 2026-05-27 05:20 UTCGHSA enrichment
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- 2026-05-26 07:17 UTCEPSS rescore
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Open source ↗GitHub PoCweinull/CVE-2020-11650First seen Apr 9, 2020
Related CVEs(same CWE)
Same CWE
10 shownCWE-307 · CWE-287
Frequently asked(5)
What is CVE-2020-11650?
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Dependency Blast Radius
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