CVE-2023-49316: Phpseclib

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.

Affected products

• Phpseclib Phpseclib: from 3.0.0, before 3.0.34 (fixed in 3.0.34)

Published 2023-11-27. Last modified 2026-06-17.