# CVE-2019-10621: Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

> A use-after-free vulnerability in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via concurrent MAP and UNMAP calls.

- **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:** 16 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-f4r2-pjj6-jmj8

## What is CVE-2019-10621?

CVE-2019-10621 is a high-severity use after free vulnerability in Qualcomm Nicobar Firmware, published on 16 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Use after free issue when MAP and UNMAP calls at same time as data structure used my MAP may be freed by UNMAP function in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in Nicobar, QCS405, Rennell, Saipan, SC8180X, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2019-10621?

It affects 11 products.


Products: Qualcomm Nicobar Firmware, Qualcomm Qcs405 Firmware, Qualcomm Rennell Firmware, Qualcomm Saipan Firmware, Qualcomm Sc8180x Firmware, Qualcomm Sdx55 Firmware, Qualcomm Sm6150 Firmware, Qualcomm Sm7150 Firmware, Qualcomm Sm8150 Firmware, Qualcomm Sm8250 Firmware, Qualcomm Sxr2130 Firmware.

## How do I fix CVE-2019-10621?

No fix has been published for CVE-2019-10621 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10621 being exploited?

There is no known exploitation of CVE-2019-10621 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Nicobar Firmware

- [CVE-2019-14014](https://insights.sbomify.com/CVE-2019-14014/): Memory corruption in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (critical 9.8)
- [CVE-2020-3674](https://insights.sbomify.com/CVE-2020-3674/): Information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10621 and fix it if it is affected.

What it is: CVE-2019-10621 is a high-severity use after free vulnerability in Qualcomm Nicobar Firmware, published on 16 Apr 2020. 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-2019-10621 in the wild and no public exploit code.

Affected product: Qualcomm Nicobar 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-2019-10621/ (Markdown: https://insights.sbomify.com/CVE-2019-10621/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10621
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10621
- OSV: https://osv.dev/vulnerability/CVE-2019-10621

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10621/
Summaries are generated and may contain mistakes; the official description above is the record.