Strix
26.1K

CVE-2022-25638

MEDIUMCVSS 6.5/10EPSS 0.62%

Last modified

CVE-2022-25638 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability
0.62%

45.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WolfsslWolfssl< 5.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-25638?
In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.
How severe is CVE-2022-25638?
CVE-2022-25638 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.
How do I fix CVE-2022-25638?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-25638?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST