# CVE-2025-21488: Buffer Over-read in Data Network Stack & Connectivity

> An attacker can disclose sensitive information from memory by sending a crafted RTP packet with the padding bit set to a device using Qualcomm Snapdragon connectivity.

- **Severity:** High 8.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Sep 2025
- **Updated:** 25 Sep 2025
- **Also known as:** GHSA-xhv3-f69c-rq49

## What is CVE-2025-21488?

CVE-2025-21488 is a high-severity vulnerability in Qualcomm Fastconnect 6200 Firmware, published on 24 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Information disclosure while decoding this RTP packet headers received by UE from the network when the padding bit is set.

Weakness: CWE-126 (Buffer Over-read)

## Which versions are affected by CVE-2025-21488?

It affects 108 products.


Products: Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qca6564 Firmware, Qualcomm Qca6564a Firmware, Qualcomm Qca6564au Firmware, Qualcomm Qca6574 Firmware, Qualcomm Qca6574a Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qcm4490 Firmware, Qualcomm Qcs410 Firmware, Qualcomm Qcs4490 Firmware, Qualcomm Qcs610 Firmware, Qualcomm Qmp1000 Firmware, Qualcomm Sa6145p Firmware, Qualcomm Sa6155 Firmware and 88 more.

## How do I fix CVE-2025-21488?

No fix has been published for CVE-2025-21488 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-21488 being exploited?

There is no known exploitation of CVE-2025-21488 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Fastconnect 6200 Firmware

- [CVE-2024-33035](https://insights.sbomify.com/CVE-2024-33035/): Integer Overflow or Wraparound in Display (high 8.4)
- [CVE-2024-23381](https://insights.sbomify.com/CVE-2024-23381/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23382](https://insights.sbomify.com/CVE-2024-23382/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23383](https://insights.sbomify.com/CVE-2024-23383/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23384](https://insights.sbomify.com/CVE-2024-23384/): Use After Free in Graphics Linux (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-21488 and fix it if it is affected.

What it is: CVE-2025-21488 is a high-severity vulnerability in Qualcomm Fastconnect 6200 Firmware, published on 24 Sep 2025. 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-2025-21488 in the wild and no public exploit code.

Affected product: Qualcomm Fastconnect 6200 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-2025-21488/ (Markdown: https://insights.sbomify.com/CVE-2025-21488/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-21488
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-21488
- OSV: https://osv.dev/vulnerability/CVE-2025-21488

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-21488/
Summaries are generated and may contain mistakes; the official description above is the record.