Is CVE-2026-31903 actively exploited?

No active exploitation of CVE-2026-31903 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-31903 be exploited remotely?

Yes. CVE-2026-31903 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-31903?

CVE-2026-31903 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-31903

HIGH

CVE-2026-31903

CWE-307Published: March 20, 2026· Updated: Mar 23, 2026

7.5

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.7th

Official Description

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.

NVD Source

Technical Analysis

CVE-2026-31903 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.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.