CVE-2016-6885

7.5 highEPSS 1.3%

High (7.5) in matrixssl matrixssl. EPSS 1.3% chance of exploitation in the next 30 days.

The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the modular exponentiation.

Severity

CVSS 3.0

7.5 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2017-01-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

matrixssl:matrixssl

References

http://www.matrixssl.org/blog/releases/matrixssl_3_8_4
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html
http://www.matrixssl.org/blog/releases/matrixssl_3_8_4
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html

Check your stack JSON