How severe is CVE-2026-29521?

CVE-2026-29521 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-29521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-29521?

CVE-2026-29521 affects Hereta Eth-imc408m Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-29521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-29521 have an EU (EUVD) identifier?

Yes. CVE-2026-29521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12464.

When was CVE-2026-29521 published?

CVE-2026-29521 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2026-29521

CVE-2026-29521 is a medium-severity vulnerability in Hereta Eth-imc408m Firmware with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.1
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12464
Weakness: CWE-352
Affected product: Hereta Eth-imc408m Firmware
Published: 2026-03-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-29521?: CVE-2026-29521 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-29521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-29521?: CVE-2026-29521 affects Hereta Eth-imc408m Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-29521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-29521 have an EU (EUVD) identifier?: Yes. CVE-2026-29521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12464.
When was CVE-2026-29521 published?: CVE-2026-29521 was published on 2026-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:hereta:eth-imc408m_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Hereta Eth-imc408m Firmware

CVE-2026-29520 — Medium (CVSS 6.1): Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a reflected cross-site scripting vulnerability in the…
CVE-2026-29513 — Medium (CVSS 5.4): Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a stored cross-site scripting vulnerability that allows…
CVE-2026-29510 — Medium (CVSS 5.4): Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a stored cross-site scripting vulnerability that allows…

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