# CVE-2023-21655: Integer Overflow or Wraparound in Display

> An integer overflow in Qualcomm Snapdragon audio drivers allows attackers to cause memory corruption, potentially leading to code execution or privilege escalation on Android devices.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Sep 2023
- **Updated:** 2 Aug 2024
- **Also known as:** 3321695, A-253296923, GHSA-cqww-fvwv-8hfg, PUB-A-253296923

## What is CVE-2023-21655?

CVE-2023-21655 is a medium-severity vulnerability in Qualcomm Qca6391 Firmware, published on 5 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption in Audio while validating and mapping metadata.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2023-21655?

It affects 31 products.


Products: Qualcomm Qca6391 Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qcc5100 Firmware, Qualcomm Sa6145p Firmware, Qualcomm Sa6150p Firmware, Qualcomm Sa6155p Firmware, Qualcomm Sa8145p Firmware, Qualcomm Sa8150p Firmware, Qualcomm Sa8155p Firmware, Qualcomm Sa8195p Firmware, Qualcomm Sd888 5g Firmware, Qualcomm Sd 8 Gen1 5g Firmware, Qualcomm Sda429w Firmware, Qualcomm Sw5100 Firmware, Qualcomm Sw5100p Firmware, Qualcomm Wcd9380 Firmware, Qualcomm Wcd9385 Firmware, Qualcomm Wcn3610 Firmware, Qualcomm Wcn3660b Firmware and 11 more.

## How do I fix CVE-2023-21655?

Apply the vendor's patch.

## Is CVE-2023-21655 being exploited?

There is no known exploitation of CVE-2023-21655 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qca6391 Firmware

- [CVE-2023-21630](https://insights.sbomify.com/CVE-2023-21630/): Integer Overflow in Multimedia Framework (high 8.4)
- [CVE-2021-35134](https://insights.sbomify.com/CVE-2021-35134/): Memory corruption in Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile (high 8.4)
- [CVE-2025-21476](https://insights.sbomify.com/CVE-2025-21476/): Buffer Copy Without Checking Size of Input in Computer Vision (high 7.8)
- [CVE-2021-30283](https://insights.sbomify.com/CVE-2021-30283/): Denial of service in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (high 7.1)
- [CVE-2021-1918](https://insights.sbomify.com/CVE-2021-1918/): Information disclosure in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-21655 and fix it if it is affected.

What it is: CVE-2023-21655 is a medium-severity vulnerability in Qualcomm Qca6391 Firmware, published on 5 Sep 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-2023-21655 in the wild and no public exploit code.

Affected product: Qualcomm Qca6391 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-2023-21655/ (Markdown: https://insights.sbomify.com/CVE-2023-21655/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-21655
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-21655
- OSV: https://osv.dev/vulnerability/CVE-2023-21655

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-21655/
Summaries are generated and may contain mistakes; the official description above is the record.