What is CVE-2025-7396?

CVE-2025-7396 is a medium-severity vulnerability in Wolfssl, classified under CWE-385. CVSS score: 4.6/10. Published 2025-07-18.

How severe is CVE-2025-7396?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Is CVE-2025-7396 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Wolfssl

CVE-2025-7396

In wolfSSL release 5.8.2 blinding support is turned on by default for Curve25519 in applicable builds. The blinding configure option is only for the base C implementation of Curve25519. It is not needed, or available with; ARM assembly builds, Intel assembly builds, and the small Curve25519 feature. While the side-channel attack on extracting a private key would be very difficult to execute in practice, enabling blinding provides an additional layer of protection for devices that may be more susceptible to physical access or side-channel observation.

EPSS: 0.002 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Wolfssl — versions 5.8.0; 0, 5.8.2

Weakness classification (CWE)

CWE-385

Public proof-of-concept exploits

References

facts@wolfssl.com (Release Notes)

Frequently asked questions

What is CVE-2025-7396?: CVE-2025-7396 is a medium-severity vulnerability in Wolfssl, classified under CWE-385. CVSS score: 4.6/10. Published 2025-07-18.
How severe is CVE-2025-7396?: Medium severity. CVSS v3 base score is 4.6 out of 10.
Is CVE-2025-7396 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.