How severe is CVE-2021-41789?

CVE-2021-41789 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-41789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41789?

CVE-2021-41789 primarily affects Mediatek Mt7615 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41789?

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

When was CVE-2021-41789 published?

CVE-2021-41789 was published on 2022-01-04 and last updated on 2026-06-17.

CVE-2021-41789

CVE-2021-41789 is a medium-severity vulnerability in Mediatek Mt7615 Firmware with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mediatek Mt7615 Firmware
Published: 2022-01-04
Last modified: 2026-06-17

Description

In wifi driver, there is a possible system crash due to a missing validation check. This could lead to remote denial of service from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20190426015; Issue ID: GN20190426015.

Frequently asked questions

What is CVE-2021-41789?: In wifi driver, there is a possible system crash due to a missing validation check. This could lead to remote denial of service from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20190426015; Issue ID: GN20190426015.
How severe is CVE-2021-41789?: CVE-2021-41789 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-41789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41789?: CVE-2021-41789 primarily affects Mediatek Mt7615 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41789 published?: CVE-2021-41789 was published on 2022-01-04 and last updated on 2026-06-17.

References

https://corp.mediatek.com/product-security-bulletin/January-2022

Affected products (2)

cpe:2.3:o:mediatek:mt7615_firmware:4.4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7622_firmware:4.4.1.1:*:*:*:*:*:*:*

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