How severe is CVE-2021-41788?

CVE-2021-41788 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2021-41788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41788?

CVE-2021-41788 primarily affects Mediatek Mt7603e Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41788?

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

When was CVE-2021-41788 published?

CVE-2021-41788 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-41788

CVE-2021-41788 is a medium-severity vulnerability in Mediatek Mt7603e 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: 7.8
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mediatek Mt7603e Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

MediaTek microchips, as used in NETGEAR devices through 2021-12-13 and other devices, mishandle attempts at Wi-Fi authentication flooding. (Affected Chipsets MT7603E, MT7612, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 7.4.0.0).

Frequently asked questions

What is CVE-2021-41788?: MediaTek microchips, as used in NETGEAR devices through 2021-12-13 and other devices, mishandle attempts at Wi-Fi authentication flooding. (Affected Chipsets MT7603E, MT7612, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 7.4.0.0).
How severe is CVE-2021-41788?: CVE-2021-41788 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2021-41788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41788?: CVE-2021-41788 primarily affects Mediatek Mt7603e Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41788?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41788 published?: CVE-2021-41788 was published on 2021-12-26 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:mediatek:mt7603e_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7612_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7613_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7615_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7622_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7628_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7629_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7915_firmware:7.4.0.0:*:*:*:*:*:*:*

More vulnerabilities in Mediatek Mt7603e Firmware

CVE-2021-37584 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle the WPS (Wi-Fi…
CVE-2021-37583 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols.…
CVE-2021-37572 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols.…
CVE-2021-37571 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols.…
CVE-2021-37570 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols.…
CVE-2021-37569 — High (CVSS 8.2): MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols.…

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