# CVE-2025-49492: Out-of-bounds write in lte-telephony

> An out-of-bounds write in the LTE telephony component allows attackers to cause buffer underruns, potentially leading to code execution or denial of service.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jul 2025
- **Updated:** 1 Jul 2025
- **Also known as:** GHSA-cq4w-36vx-4m5f

## What is CVE-2025-49492?

CVE-2025-49492 is a high-severity memory corruption vulnerability in ASR Falcon_Linux、Kestrel、Lapwing_Linux, published on 1 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Out-of-bounds write in ASR180x  in lte-telephony, May cause a buffer underrun.  This vulnerability is associated with program files apps/atcmd_server/src/dev_api.C.

This issue affects Falcon_Linux、Kestrel、Lapwing_Linux: before v1536.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2025-49492?

It affects 3 products.


Products: Asrmicro Falcon Linux, Asrmicro Kestrel, Asrmicro Lapwing Linux.

## How do I fix CVE-2025-49492?

No fix has been published for CVE-2025-49492 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-49492 being exploited?

There is no known exploitation of CVE-2025-49492 in the wild and no public exploit code.

## Other vulnerabilities in ASR Falcon_Linux、Kestrel、Lapwing_Linux

- [CVE-2025-49480](https://insights.sbomify.com/CVE-2025-49480/): Out-of-bounds access in lte-telephony (high 7.4)
- [CVE-2025-49481](https://insights.sbomify.com/CVE-2025-49481/): Resource leaks in router (medium 5.4)
- [CVE-2025-49482](https://insights.sbomify.com/CVE-2025-49482/): Resource leaks in tr069 (medium 5.4)
- [CVE-2025-49483](https://insights.sbomify.com/CVE-2025-49483/): Resource leaks in tr069 (medium 5.4)
- [CVE-2025-49488](https://insights.sbomify.com/CVE-2025-49488/): Resource leaks in router (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-49492 and fix it if it is affected.

What it is: CVE-2025-49492 is a high-severity memory corruption vulnerability in ASR Falcon_Linux、Kestrel、Lapwing_Linux, published on 1 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-49492 in the wild and no public exploit code.

Affected product: ASR Falcon_Linux、Kestrel、Lapwing_Linux. 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-2025-49492/ (Markdown: https://insights.sbomify.com/CVE-2025-49492/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-49492
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-49492
- OSV: https://osv.dev/vulnerability/CVE-2025-49492

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-49492/
Summaries are generated and may contain mistakes; the official description above is the record.