What’s Vulnerable › Vulnerabilities

CVE-2021-44718

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-02 · updated 2026-06-17
• Weakness: CWE-835

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.

Affected products

• wolfSSL: through 5.0.0

References

• https://github.com/wolfSSL/wolfssl/releases
• https://www.wolfssl.com/docs/security-vulnerabilities/
• https://github.com/wolfSSL/wolfssl/releases
• https://www.wolfssl.com/docs/security-vulnerabilities/

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