CVE-2021-44718
Last modified
CVE-2021-44718 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.
Description
wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | <= 5.0.0 |
References
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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.
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