# CVE-2023-28561: Buffer Copy Without Checking Size of Input in QESL

> A buffer overflow in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via malicious payloads from external ESL devices.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Aug 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-vw4p-3wx5-4j4r

## What is CVE-2023-28561?

CVE-2023-28561 is a critical memory corruption vulnerability in Qualcomm Qcn7606 Firmware, published on 8 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory corruption in QESL while processing payload from external ESL device to firmware.

Weakness: CWE-787 (Out-of-bounds Write), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-28561?

It affects 1 product.


Products: Qualcomm Qcn7606 Firmware.

## How do I fix CVE-2023-28561?

No fix has been published for CVE-2023-28561 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28561 being exploited?

There is no known exploitation of CVE-2023-28561 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qcn7606 Firmware

- [CVE-2023-43512](https://insights.sbomify.com/CVE-2023-43512/): Buffer Over-read in Qualcomm ESL (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28561 and fix it if it is affected.

What it is: CVE-2023-28561 is a critical memory corruption vulnerability in Qualcomm Qcn7606 Firmware, published on 8 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-28561 in the wild and no public exploit code.

Affected product: Qualcomm Qcn7606 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-2023-28561/ (Markdown: https://insights.sbomify.com/CVE-2023-28561/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28561
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28561
- OSV: https://osv.dev/vulnerability/CVE-2023-28561

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28561/
Summaries are generated and may contain mistakes; the official description above is the record.