# CVE-2024-45556: Improper Access Control for Register Interface in TZ Firmware

> Improper access control in Qualcomm Snapdragon firmware allows Linux to read sensitive key registers, potentially exposing cryptographic material.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **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:** 7 Apr 2025
- **Updated:** 7 Apr 2025
- **Also known as:** GHSA-8phc-9jc2-384h

## What is CVE-2024-45556?

CVE-2024-45556 is a medium-severity vulnerability in Qualcomm Fastconnect 6900 Firmware, published on 7 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cryptographic issue may arise because the access control configuration permits Linux to read key registers in TCSR.

Weakness: CWE-1262 (Improper Access Control for Register Interface)

## Which versions are affected by CVE-2024-45556?

It affects 60 products.


Products: Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Immersive Home 3210 Platform Firmware, Qualcomm Immersive Home 326 Platform Firmware, Qualcomm Ipq5300 Firmware, Qualcomm Ipq5302 Firmware, Qualcomm Ipq5312 Firmware, Qualcomm Ipq5332 Firmware, Qualcomm Ipq9008 Firmware, Qualcomm Ipq9048 Firmware, Qualcomm Ipq9554 Firmware, Qualcomm Ipq9570 Firmware, Qualcomm Ipq9574 Firmware, Qualcomm Qca0000 Firmware, Qualcomm Qca8075 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8082 Firmware, Qualcomm Qca8084 Firmware, Qualcomm Qca8085 Firmware, Qualcomm Qca8386 Firmware and 40 more.

## How do I fix CVE-2024-45556?

No fix has been published for CVE-2024-45556 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-45556 being exploited?

There is no known exploitation of CVE-2024-45556 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Fastconnect 6900 Firmware

- [CVE-2024-38399](https://insights.sbomify.com/CVE-2024-38399/): Use After Free in Graphics (high 8.4)
- [CVE-2024-21472](https://insights.sbomify.com/CVE-2024-21472/): Use After Free in Kernel (high 8.4)
- [CVE-2025-47405](https://insights.sbomify.com/CVE-2025-47405/): Untrusted Pointer Dereference in Camera (high 7.8)
- [CVE-2025-47358](https://insights.sbomify.com/CVE-2025-47358/): Use After Free in Secure Processor (high 7.8)
- [CVE-2025-47350](https://insights.sbomify.com/CVE-2025-47350/): Use After Free in DSP Service (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45556 and fix it if it is affected.

What it is: CVE-2024-45556 is a medium-severity vulnerability in Qualcomm Fastconnect 6900 Firmware, published on 7 Apr 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-2024-45556 in the wild and no public exploit code.

Affected product: Qualcomm Fastconnect 6900 Firmware. 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-2024-45556/ (Markdown: https://insights.sbomify.com/CVE-2024-45556/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45556
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45556
- OSV: https://osv.dev/vulnerability/CVE-2024-45556

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-45556/
Summaries are generated and may contain mistakes; the official description above is the record.