Is CVE-2025-59028 actively exploited?

No active exploitation of CVE-2025-59028 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-59028 be exploited remotely?

Yes. CVE-2025-59028 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-59028?

CVE-2025-59028 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2025-59028

CWE-20Published: March 27, 2026· Updated: Mar 30, 2026

5.3

CVSS v3.1

EPSS:0.09%probability of exploitation in 30 daysPercentile:25.9th

Official Description

When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail. Invalid BASE64 data can be used to DoS a vulnerable server to break concurrent logins. Install fixed version or disable concurrency in login processes (heavy perfomance penalty on large deployments). No publicly available exploits are known.

NVD Source

Technical Analysis

CVE-2025-59028 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.