# CVE-2018-11940: Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

> Out-of-bounds memory access in WLAN firmware allows attackers to execute arbitrary code or cause denial of service on affected Qualcomm Snapdragon devices.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 24 May 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-22qm-pq7c-f85x

## What is CVE-2018-11940?

CVE-2018-11940 is a critical memory corruption vulnerability in Qualcomm Mdm9150 Firmware, published on 24 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Lack of check in length before using memcpy in WLAN function can lead to OOB access in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS605, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24, SXR1130

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2018-11940?

It affects 24 products.


Products: Qualcomm Mdm9150 Firmware, Qualcomm Mdm9206 Firmware, Qualcomm Mdm9607 Firmware, Qualcomm Mdm9640 Firmware, Qualcomm Mdm9650 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qcs605 Firmware, Qualcomm Sd 625 Firmware, Qualcomm Sd 636 Firmware, Qualcomm Sd 670 Firmware, Qualcomm Sd 710 Firmware, Qualcomm Sd 712 Firmware, Qualcomm Sd 820 Firmware, Qualcomm Sd 820a Firmware, Qualcomm Sd 835 Firmware, Qualcomm Sd 845 Firmware, Qualcomm Sd 850 Firmware, Qualcomm Sd 855 Firmware, Qualcomm Sda660 Firmware, Qualcomm Sdm630 Firmware and 4 more.

## How do I fix CVE-2018-11940?

No fix has been published for CVE-2018-11940 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-11940 being exploited?

There is no known exploitation of CVE-2018-11940 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Mdm9150 Firmware

- [CVE-2019-10505](https://insights.sbomify.com/CVE-2019-10505/): Memory corruption in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8)
- [CVE-2019-10542](https://insights.sbomify.com/CVE-2019-10542/): Memory corruption in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music (critical 9.8)
- [CVE-2019-2258](https://insights.sbomify.com/CVE-2019-2258/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8)
- [CVE-2019-2283](https://insights.sbomify.com/CVE-2019-2283/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8)
- [CVE-2019-2323](https://insights.sbomify.com/CVE-2019-2323/): Null dereference in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-11940 and fix it if it is affected.

What it is: CVE-2018-11940 is a critical memory corruption vulnerability in Qualcomm Mdm9150 Firmware, published on 24 May 2019. 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-2018-11940 in the wild and no public exploit code.

Affected product: Qualcomm Mdm9150 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-2018-11940/ (Markdown: https://insights.sbomify.com/CVE-2018-11940/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-11940
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-11940
- OSV: https://osv.dev/vulnerability/CVE-2018-11940

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-11940/
Summaries are generated and may contain mistakes; the official description above is the record.