# CVE-2020-11277: Race condition in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile

> A race condition in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via async RPC messages.

- **Severity:** High 7.4 (`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Feb 2021
- **Updated:** 4 Aug 2024
- **Also known as:** 2731406, A-172349048, ASB-A-172349048, GHSA-pr65-pvq8-rq7c

## What is CVE-2020-11277?

CVE-2020-11277 is a high-severity vulnerability in Qualcomm Pm3003a Firmware, published on 22 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Possible race condition during async fastrpc session after sending RPC message due to the fastrpc ctx gets free during async session in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-416 (Use After Free), CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2020-11277?

It affects 161 products.


Products: Qualcomm Pm3003a Firmware, Qualcomm Pm4250 Firmware, Qualcomm Pm6125 Firmware, Qualcomm Pm6150a Firmware, Qualcomm Pm6150l Firmware, Qualcomm Pm6350 Firmware, Qualcomm Pm7150a Firmware, Qualcomm Pm7150l Firmware, Qualcomm Pm7250 Firmware, Qualcomm Pm7250b Firmware, Qualcomm Pm7350c Firmware, Qualcomm Pm8008 Firmware, Qualcomm Pm8009 Firmware, Qualcomm Pm8150a Firmware, Qualcomm Pm8150b Firmware, Qualcomm Pm8150c Firmware, Qualcomm Pm8150l Firmware, Qualcomm Pm8250 Firmware, Qualcomm Pm8350 Firmware, Qualcomm Pm8350b Firmware and 141 more.

## How do I fix CVE-2020-11277?

Apply the vendor's patch.

## Is CVE-2020-11277 being exploited?

There is no known exploitation of CVE-2020-11277 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Pm3003a Firmware

- [CVE-2020-11181](https://insights.sbomify.com/CVE-2020-11181/): Memory corruption in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11277 and fix it if it is affected.

What it is: CVE-2020-11277 is a high-severity vulnerability in Qualcomm Pm3003a Firmware, published on 22 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-11277 in the wild and no public exploit code.

Affected product: Qualcomm Pm3003a 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-2020-11277/ (Markdown: https://insights.sbomify.com/CVE-2020-11277/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11277
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11277
- OSV: https://osv.dev/vulnerability/CVE-2020-11277

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11277/
Summaries are generated and may contain mistakes; the official description above is the record.