CVE-2026-22540Network attack vector

Charging interruption via ARP request flooding

Published Jan 7, 2026 · Updated Jan 7, 2026

Uncontrolled resource consumption in Efacec QC 60/90/120 version 8 allows remote attackers to interrupt charging via ARP flooding. A flood of ARP requests exhausts resources on the board that controls the EV interfaces, taking that board out of service. Network reachability to the charger is sufficient; no authentication or user interaction is required, and board failure prevents the charger from functioning.

CVSS severity9.2
Critical
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Efacec QC 60/90/120 version 8 allows remote attackers to interrupt charging via ARP flooding. A flood of ARP requests exhausts resources on the board that controls the EV interfaces, taking that board out of service. Network reachability to the charger is sufficient; no authentication or user interaction is required, and board failure prevents the charger from functioning.

The record

CVE
CVE-2026-22540
Published
Jan 7, 2026
Updated
Jan 7, 2026
Vendor
Efacec
Product
QC 60/90/120
Classifications
CWE-400, CAPEC-125, T1499.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Efacec · QC 60/90/120version=8

Published CVSS scores

9.2S21secCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CAPEC-125Flooding
T1499.002Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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