What’s Vulnerable › Vulnerabilities

CVE-2022-34293

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-08 · updated 2026-06-17

Description

wolfSSL before 5.4.0 allows remote attackers to cause a denial of service via DTLS because a check for return-routability can be skipped.

Affected products

• wolfSSL: before 5.4.0 — fixed in 5.4.0

How to fix

Upgrade to a fixed version: wolfSSL 5.4.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/08/08/6
• https://github.com/wolfSSL/wolfssl/releases/tag/v5.4.0-stable
• http://www.openwall.com/lists/oss-security/2022/08/08/6
• https://github.com/wolfSSL/wolfssl/releases/tag/v5.4.0-stable

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