How severe is CVE-2026-22540?

CVE-2026-22540 has a CVSS 4.0 base score of 9.2, rated critical severity.

Is CVE-2026-22540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-22540 have an EU (EUVD) identifier?

Yes. CVE-2026-22540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1218.

When was CVE-2026-22540 published?

CVE-2026-22540 was published on 2026-01-07 and last updated on 2026-06-17.

CVE-2026-22540

CVE-2026-22540 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Critical (CVSS 4.0 base score 9.2)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1218
Weakness: CWE-400
Published: 2026-01-07
Last modified: 2026-06-17

Description

The massive sending of ARP requests causes a denial of service on one board of the charger that allows control of the EV interfaces. Since the board must be operating correctly for the charger to also function correctly.

Frequently asked questions

What is CVE-2026-22540?: The massive sending of ARP requests causes a denial of service on one board of the charger that allows control of the EV interfaces. Since the board must be operating correctly for the charger to also function correctly.
How severe is CVE-2026-22540?: CVE-2026-22540 has a CVSS 4.0 base score of 9.2, rated critical severity.
Is CVE-2026-22540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-22540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-22540 have an EU (EUVD) identifier?: Yes. CVE-2026-22540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1218.
When was CVE-2026-22540 published?: CVE-2026-22540 was published on 2026-01-07 and last updated on 2026-06-17.

References

https://cds.thalesgroup.com/en

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