What is CVE-2026-20882?

CVE-2026-20882 is a high-severity vulnerability in Mobiliti E-Mobi.hu, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.5/10. Published 2026-03-06.

How severe is CVE-2026-20882?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mobiliti E-Mobi.hu

CVE-2026-20882

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.

Published 2026-03-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Mobiliti E-Mobi.hu — versions All versions
Mvm Mobiliti E-Mobi.hu

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

mobiliti.hu/emobilitas/ugyfeltamogatas/ugyfelszolgalat (Product)
www.cisa.gov/news-events/ics-advisories/icsa-26-062-06 (US Government Resource)
github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-06.js… (Product)

Frequently asked questions

What is CVE-2026-20882?: CVE-2026-20882 is a high-severity vulnerability in Mobiliti E-Mobi.hu, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.5/10. Published 2026-03-06.
How severe is CVE-2026-20882?: High severity. CVSS v3 base score is 7.5 out of 10.