How severe is CVE-2021-37562?

CVE-2021-37562 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2021-37562 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37562?

CVE-2021-37562 primarily affects Mediatek Mt7603e Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37562?

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-2021-37562 published?

CVE-2021-37562 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-37562

CVE-2021-37562 is a high-severity vulnerability in Mediatek Mt7603e Firmware with a CVSS 3.x base score of 8.2. 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-125.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 5.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Mediatek Mt7603e Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle the WPS (Wi-Fi Protected Setup) protocol. (Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 7.4.0.0; Out-of-bounds read).

Frequently asked questions

What is CVE-2021-37562?: MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle the WPS (Wi-Fi Protected Setup) protocol. (Affected Chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 7.4.0.0; Out-of-bounds read).
How severe is CVE-2021-37562?: CVE-2021-37562 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2021-37562 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37562?: CVE-2021-37562 primarily affects Mediatek Mt7603e Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37562?: 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-2021-37562 published?: CVE-2021-37562 was published on 2021-12-26 and last updated on 2026-06-17.

References

Affected products (10)

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:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7620_firmware:7.4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7610_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.…

All CVEs affecting Mediatek Mt7603e Firmware →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
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