# CVE-2025-21453: Use After Free in GPS HLOS Driver

> A use-after-free flaw in the Qualcomm GPS driver allows attackers to execute arbitrary code or escalate privileges on Android devices.

- **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:** Yes
- **Published:** 6 May 2025
- **Updated:** 26 Feb 2026
- **Also known as:** 3886536, A-394100452, ASB-A-394100452, GHSA-hh2j-g84c-6hvv

## What is CVE-2025-21453?

CVE-2025-21453 is a high-severity use after free vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 6 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption while processing a data structure, when an iterator is accessed after it has been removed, potential failures occur.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2025-21453?

It affects 266 products.


Products: Qualcomm 205 Mobile Firmware, Qualcomm 215 Mobile Firmware, Qualcomm 315 5g Iot Modem Firmware, Qualcomm Apq8017 Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Csrb31024 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Mdm9628 Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8620p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware and 246 more.

## How do I fix CVE-2025-21453?

Apply the vendor's patch.

## Is CVE-2025-21453 being exploited?

There is no known exploitation of CVE-2025-21453 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm 315 5g Iot Modem Firmware

- [CVE-2023-43551](https://insights.sbomify.com/CVE-2023-43551/): Improper Authentication in Multi-Mode Call Processor (critical 9.1)
- [CVE-2024-21471](https://insights.sbomify.com/CVE-2024-21471/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-21468](https://insights.sbomify.com/CVE-2024-21468/): Use After Free in Kernel (high 8.4)
- [CVE-2023-33066](https://insights.sbomify.com/CVE-2023-33066/): Use of Out-of-range Pointer Offset in Audio (high 8.4)
- [CVE-2025-21427](https://insights.sbomify.com/CVE-2025-21427/): Buffer Over-read in Data HLOS - LNX (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-21453 and fix it if it is affected.

What it is: CVE-2025-21453 is a high-severity use after free vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 6 May 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-2025-21453 in the wild and no public exploit code.

Affected product: Qualcomm 315 5g Iot Modem 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-2025-21453/ (Markdown: https://insights.sbomify.com/CVE-2025-21453/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-21453
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-21453
- OSV: https://osv.dev/vulnerability/CVE-2025-21453

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-21453/
Summaries are generated and may contain mistakes; the official description above is the record.