Which versions of Mobiliti E Mobi Hu are affected by CVE-2026-27764?

CVE-2026-27764 allows attackers to hijack charging station sessions by exploiting weak session identifier validation in the WebSocket backend, potentially enabling unauthorized access to critical…

How to fix or mitigate CVE-2026-27764?

Within 24 hours: Identify and inventory all systems using the affected WebSocket backend and assess exposure scope; enable enhanced logging for WebSocket connections. Within 7 days: Implement network segmentation to restrict WebSocket endpoint access and deploy WAF rules to validate session identifiers; conduct internal audit for signs of exploitation. Within 30 days: Work with vendor on patch timeline; evaluate alternative charging station management solutions; implement multi-factor authentication for administrative access to charging infrastructure.

Mobiliti E Mobi Hu CVE-2026-27764

Q: What is the CVSS score of CVE-2026-27764?

CVE-2026-27764 has a CVSS 4.0 base score of 6.9 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

MEDIUM

Insufficient Session Expiration (CWE-613)

2026-03-06 ics-cert@hq.dhs.gov

Authentication Bypass Mobiliti E Mobi Hu

6.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

6.9 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

May 05, 2026 - 19:07 NVD

HIGH MEDIUM

CVSS changed

May 05, 2026 - 19:07 NVD

7.3 (HIGH) 6.9 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 06, 2026 - 16:16 nvd

HIGH 7.3

DescriptionCVE.org

The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.

AnalysisAI

WebSocket session handling in charging station backends allows multiple connections to use identical session identifiers, enabling attackers to hijack active sessions and impersonate legitimate stations without authentication. An adversary can intercept backend commands intended for a target charging station or launch denial-of-service attacks by flooding the backend with spoofed session requests. This vulnerability affects any system relying on this WebSocket implementation and currently lacks an available patch.

Technical ContextAI

Classified as CWE-613 (Insufficient Session Expiration). The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicio