How severe is CVE-2021-32403?

CVE-2021-32403 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32403?

CVE-2021-32403 affects Intelbras Rf 301k Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-32403 published?

CVE-2021-32403 was published on 2021-05-17 and last updated on 2026-06-17.

CVE-2021-32403

CVE-2021-32403 is a high-severity vulnerability in Intelbras Rf 301k Firmware with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Intelbras Rf 301k Firmware
Published: 2021-05-17
Last modified: 2026-06-17

Description

Intelbras Router RF 301K Firmware 1.1.2 is vulnerable to Cross Site Request Forgery (CSRF) due to lack of security mechanisms for token protection and unsafe inputs and modules.

Frequently asked questions

What is CVE-2021-32403?: Intelbras Router RF 301K Firmware 1.1.2 is vulnerable to Cross Site Request Forgery (CSRF) due to lack of security mechanisms for token protection and unsafe inputs and modules.
How severe is CVE-2021-32403?: CVE-2021-32403 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32403?: CVE-2021-32403 affects Intelbras Rf 301k Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-32403 published?: CVE-2021-32403 was published on 2021-05-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:intelbras:rf_301k_firmware:1.1.2:*:*:*:*:*:*:*

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