# CVE-2023-52712: Security feature bypass in CurieM-WFG9B

> Exposed SMI handler allows bypassing SPI flash protections and corrupting SMM memory, potentially leading to code execution in System Management Mode.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 May 2024
- **Updated:** 2 Aug 2024

## What is CVE-2023-52712?

CVE-2023-52712 is a high-severity vulnerability in Huawei CurieM-WFG9B, published on 28 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Various Issues Due To Exposed SMI Handler in AmdPspP2CmboxV2. The first issue can be leveraged to bypass the protections that have been put in place by previous UEFI phases to prevent direct access to the SPI flash. The second issue can be used to both leak and corrupt SMM memory, thus potentially leading code execution in SMM

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-52712?

It affects 1 product.


Products: Huawei Curiem-Wfg9b Firmware.

## How do I fix CVE-2023-52712?

No fix has been published for CVE-2023-52712 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-52712 being exploited?

There is no known exploitation of CVE-2023-52712 in the wild and no public exploit code.

## Other vulnerabilities in Huawei CurieM-WFG9B

- [CVE-2023-52547](https://insights.sbomify.com/CVE-2023-52547/): Memory corruption in CurieM-WFG9B (high 7.8)
- [CVE-2023-52548](https://insights.sbomify.com/CVE-2023-52548/): Memory corruption in CurieM-WFG9B (high 7.8)
- [CVE-2023-52710](https://insights.sbomify.com/CVE-2023-52710/): Memory corruption in CurieM-WFG9B (high 7.8)
- [CVE-2023-52711](https://insights.sbomify.com/CVE-2023-52711/): Privilege escalation in CurieM-WFG9B (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-52712 and fix it if it is affected.

What it is: CVE-2023-52712 is a high-severity vulnerability in Huawei CurieM-WFG9B, published on 28 May 2024. 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-2023-52712 in the wild and no public exploit code.

Affected product: Huawei CurieM-WFG9B. 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-2023-52712/ (Markdown: https://insights.sbomify.com/CVE-2023-52712/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-52712
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-52712
- OSV: https://osv.dev/vulnerability/CVE-2023-52712

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-52712/
Summaries are generated and may contain mistakes; the official description above is the record.