# CVE-2022-25740: Buffer Copy Without Checking Size of Input in MODEM

> A buffer overflow in the Qualcomm Snapdragon modem allows attackers to execute arbitrary code or escalate privileges via crafted IPv6 multicast addresses.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Apr 2023
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-r4hx-pgm4-prgq

## What is CVE-2022-25740?

CVE-2022-25740 is a critical memory corruption vulnerability in Qualcomm Mdm8207 Firmware, published on 4 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory corruption in modem due to buffer overwrite while building an IPv6 multicast address based on the MAC address of the iface

Weakness: CWE-787 (Out-of-bounds Write), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2022-25740?

It affects 12 products.


Products: Qualcomm Mdm8207 Firmware, Qualcomm Mdm9205 Firmware, Qualcomm Mdm9206 Firmware, Qualcomm Mdm9207 Firmware, Qualcomm Qca4004 Firmware, Qualcomm Qts110 Firmware, Qualcomm Snapdragon Wear 1100 Firmware, Qualcomm Snapdragon Wear 1200 Firmware, Qualcomm Snapdragon Wear 1300 Firmware, Qualcomm Snapdragon X5 Lte Modem Firmware, Qualcomm Wcd9306 Firmware, Qualcomm Wcd9330 Firmware.

## How do I fix CVE-2022-25740?

No fix has been published for CVE-2022-25740 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-25740 being exploited?

There is no known exploitation of CVE-2022-25740 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Mdm8207 Firmware

- [CVE-2022-25678](https://insights.sbomify.com/CVE-2022-25678/): Buffer Copy Without Checking Size of Input in MODEM (critical 9.8)
- [CVE-2022-33211](https://insights.sbomify.com/CVE-2022-33211/): Improper Input Validation in MODEM (critical 9.8)
- [CVE-2022-33259](https://insights.sbomify.com/CVE-2022-33259/): Buffer copy without checking the size of input in Modem (critical 9.8)
- [CVE-2022-25726](https://insights.sbomify.com/CVE-2022-25726/): Buffer Over-read in MODEM (high 8.2)
- [CVE-2022-25730](https://insights.sbomify.com/CVE-2022-25730/): Buffer Over-read in MODEM (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-25740 and fix it if it is affected.

What it is: CVE-2022-25740 is a critical memory corruption vulnerability in Qualcomm Mdm8207 Firmware, published on 4 Apr 2023. 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-2022-25740 in the wild and no public exploit code.

Affected product: Qualcomm Mdm8207 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-2022-25740/ (Markdown: https://insights.sbomify.com/CVE-2022-25740/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-25740
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-25740
- OSV: https://osv.dev/vulnerability/CVE-2022-25740

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-25740/
Summaries are generated and may contain mistakes; the official description above is the record.