# CVE-2020-9850: Code injection in Safari

> A remote attacker can achieve arbitrary code execution via a logic issue in Apple operating systems and browsers.

- **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:** Yes
- **Published:** 9 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2020-9850, GHSA-4jv4-fxjp-hmm7, UBUNTU-CVE-2020-9850

## What is CVE-2020-9850?

CVE-2020-9850 is a critical code injection vulnerability in Apple Icloud, published on 9 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.

## Which versions are affected by CVE-2020-9850?

It affects 7 products.


Products: Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos, Apple Watchos.

## How do I fix CVE-2020-9850?

Upgrade to a fixed version.

## Is CVE-2020-9850 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-9850 exists.

Public exploit code:

- Safari in Operator Side Effect Exploit (metasploit)

## Other vulnerabilities in Apple Icloud

- [CVE-2019-8506](https://insights.sbomify.com/CVE-2019-8506/): Apple Multiple Products Type Confusion (high 8.8, exploited in the wild)
- [CVE-2020-27932](https://insights.sbomify.com/CVE-2020-27932/): Apple Multiple Products Type Confusion (high 7.8, exploited in the wild)
- [CVE-2019-8746](https://insights.sbomify.com/CVE-2019-8746/): Memory corruption in iOS (critical 9.8)
- [CVE-2019-8749](https://insights.sbomify.com/CVE-2019-8749/): Memory corruption in iOS (critical 9.8)
- [CVE-2019-8756](https://insights.sbomify.com/CVE-2019-8756/): Memory corruption in iOS (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9850 and fix it if it is affected.

What it is: CVE-2020-9850 is a critical code injection vulnerability in Apple Icloud, published on 9 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-9850 exists.

Affected product: Apple Icloud. 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-2020-9850/ (Markdown: https://insights.sbomify.com/CVE-2020-9850/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9850
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9850
- OSV: https://osv.dev/vulnerability/CVE-2020-9850

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9850/
Summaries are generated and may contain mistakes; the official description above is the record.