CVE-2025-12357 International Standards Organization ISO 15118-2 Improper Restriction of Communication Channel to Intended Endpoints

Medium 5.3 Published Updated

Attackers can perform man-in-the-middle attacks on EV chargers by spoofing SLAC protocol measurements, compromising communication integrity.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-12357?

CVE-2025-12357 is a medium-severity vulnerability in ISO 15118-2 Network and Application Protocol Requirements EV Car Chargers, published on 31 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

By manipulating the Signal Level Attenuation Characterization (SLAC) protocol with spoofed measurements, an attacker can stage a man-in-the-middle attack between an electric vehicle and chargers that comply with the ISO 15118-2 part. This vulnerability may be exploitable wirelessly, within close proximity, via electromagnetic induction.

Weakness: CWE-923

Which versions are affected by CVE-2025-12357?

How do I fix CVE-2025-12357?

No fix has been published for CVE-2025-12357 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12357 being exploited?

There is no known exploitation of CVE-2025-12357 in the wild and no public exploit code.

Sources

Also known as GHSA-cfx8-xj8g-9hv3.

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