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

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

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Oct 2025
- **Updated:** 18 Mar 2026
- **Also known as:** GHSA-cfx8-xj8g-9hv3

## 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 (Improper Restriction of Communication Channel to Intended Endpoints)

## 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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-12357 and fix it if it is affected.

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

Affected product: ISO 15118-2 Network and Application Protocol Requirements EV Car Chargers. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-12357/ (Markdown: https://insights.sbomify.com/CVE-2025-12357/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-12357
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-12357
- OSV: https://osv.dev/vulnerability/CVE-2025-12357

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-12357/
Summaries are generated and may contain mistakes; the official description above is the record.