# CVE-2022-40523: Information exposure in Kernel

> An attacker can exploit indirect branch misprediction in the Qualcomm Snapdragon kernel to disclose sensitive information.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A: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:** 6 Jun 2023
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-rwgh-9h84-fcv3

## What is CVE-2022-40523?

CVE-2022-40523 is a high-severity vulnerability in Qualcomm Aqt1000 Firmware, published on 6 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Information disclosure in Kernel due to indirect branch misprediction.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2022-40523?

It affects 185 products.


Products: Qualcomm 9205 Lte Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca4004 Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6310 Firmware, Qualcomm Qca6335 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6420 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware and 165 more.

## How do I fix CVE-2022-40523?

No fix has been published for CVE-2022-40523 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-40523 being exploited?

There is no known exploitation of CVE-2022-40523 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Aqt1000 Firmware

- [CVE-2023-33032](https://insights.sbomify.com/CVE-2023-33032/): Integer Overflow or Wraparound in TZ Secure OS (critical 9.3)
- [CVE-2022-40505](https://insights.sbomify.com/CVE-2022-40505/): Buffer over-read in Modem (high 8.2)
- [CVE-2022-33287](https://insights.sbomify.com/CVE-2022-33287/): Buffer over-read in Modem (high 8.2)
- [CVE-2022-33291](https://insights.sbomify.com/CVE-2022-33291/): Buffer over-read in Modem (high 8.2)
- [CVE-2024-21465](https://insights.sbomify.com/CVE-2024-21465/): Buffer Over-read in Trusted Execution Environment (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-40523 and fix it if it is affected.

What it is: CVE-2022-40523 is a high-severity vulnerability in Qualcomm Aqt1000 Firmware, published on 6 Jun 2023. 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-2022-40523 in the wild and no public exploit code.

Affected product: Qualcomm Aqt1000 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-2022-40523/ (Markdown: https://insights.sbomify.com/CVE-2022-40523/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-40523
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-40523
- OSV: https://osv.dev/vulnerability/CVE-2022-40523

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-40523/
Summaries are generated and may contain mistakes; the official description above is the record.