What is CVE-2026-29521?

CVE-2026-29521 is a medium-severity vulnerability in Hereta Eth-Imc408m, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-03-16.

How severe is CVE-2026-29521?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Hereta Eth-Imc408m

CVE-2026-29521

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.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.001 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Hereta Eth-imc408m
Hereta Eth-imc408m_firmware
Shenzhen Hereta Technology Co., Ltd. Eth-imc408m — versions 0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-29521?: CVE-2026-29521 is a medium-severity vulnerability in Hereta Eth-Imc408m, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-03-16.
How severe is CVE-2026-29521?: Medium severity. CVSS v3 base score is 4.3 out of 10.