# CVE-2020-11243: Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile

> A flaw in Qualcomm Snapdragon firmware allows attackers to cause a denial of service by bypassing connection setup validation checks.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 7 Apr 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-7rp2-q3m6-w939

## What is CVE-2020-11243?

CVE-2020-11243 is a high-severity denial of service vulnerability in Qualcomm Aqt1000 Firmware, published on 7 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

RRC sends a connection establishment success to NAS even though connection setup validation returns failure and leads to denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile

Weakness: CWE-755 (Improper Handling of Exceptional Conditions)

## Which versions are affected by CVE-2020-11243?

It affects 137 products.


Products: Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Fsm10055 Firmware, Qualcomm Fsm10056 Firmware, Qualcomm Pm3003a Firmware, Qualcomm Pm7150a Firmware, Qualcomm Pm7150l Firmware, Qualcomm Pm7250 Firmware, Qualcomm Pm7250b Firmware, Qualcomm Pm8004 Firmware, Qualcomm Pm8008 Firmware, Qualcomm Pm8009 Firmware, Qualcomm Pm8150 Firmware, Qualcomm Pm8150a Firmware, Qualcomm Pm8150b Firmware, Qualcomm Pm8150c Firmware, Qualcomm Pm8150l Firmware, Qualcomm Pm8250 Firmware, Qualcomm Pm855 Firmware, Qualcomm Pm855b Firmware and 117 more.

## How do I fix CVE-2020-11243?

No fix has been published for CVE-2020-11243 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11243 being exploited?

There is no known exploitation of CVE-2020-11243 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Aqt1000 Firmware

- [CVE-2025-21479](https://insights.sbomify.com/CVE-2025-21479/): Qualcomm Multiple Chipsets Incorrect Authorization (high 8.6, exploited in the wild)
- [CVE-2025-21480](https://insights.sbomify.com/CVE-2025-21480/): Qualcomm Multiple Chipsets Incorrect Authorization (high 8.6, exploited in the wild)
- [CVE-2023-28562](https://insights.sbomify.com/CVE-2023-28562/): Buffer Copy Without Checking Size of Input in QESL (critical 9.8)
- [CVE-2022-40514](https://insights.sbomify.com/CVE-2022-40514/): Buffer copy without checking size of input in WLAN Firmware (critical 9.8)
- [CVE-2022-22096](https://insights.sbomify.com/CVE-2022-22096/): Memory corruption in Snapdragon Connectivity, Snapdragon Mobile (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11243 and fix it if it is affected.

What it is: CVE-2020-11243 is a high-severity denial of service vulnerability in Qualcomm Aqt1000 Firmware, published on 7 Apr 2021. 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-2020-11243 in the wild and no public exploit code.

Affected product: Qualcomm Aqt1000 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-2020-11243/ (Markdown: https://insights.sbomify.com/CVE-2020-11243/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11243
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11243
- OSV: https://osv.dev/vulnerability/CVE-2020-11243

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-11243/
Summaries are generated and may contain mistakes; the official description above is the record.