CVE-2021-44718
mediumpriority · track · 24EPSS 0.008 · 56 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2021-44718/cnnvd
- https://github.com/wolfSSL/wolfssl/releasescnnvd
- https://www.wolfssl.com/docs/security-vulnerabilities/cnnvd
- https://github.com/wolfSSL/wolfssl/releasesenisa_euvd
- https://www.wolfssl.com/docs/security-vulnerabilities/enisa_euvd
- https://github.com/wolfSSL/wolfssl/releasesRelease NotesThird Party Advisorynvd
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisorynvd
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