How severe is CVE-2021-37569?

CVE-2021-37569 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-2021-37569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37569?

CVE-2021-37569 primarily affects Mediatek Mt7603e Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37569?

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-2021-37569 published?

CVE-2021-37569 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-37569

CVE-2021-37569 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 9.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
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 IEEE 1905 protocols. (Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 2.0.2; Out-of-bounds write).

Frequently asked questions

What is CVE-2021-37569?: MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols. (Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 2.0.2; Out-of-bounds write).
How severe is CVE-2021-37569?: CVE-2021-37569 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-2021-37569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37569?: CVE-2021-37569 primarily affects Mediatek Mt7603e Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37569?: 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-2021-37569 published?: CVE-2021-37569 was published on 2021-12-26 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:mediatek:mt7603e_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7613_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7615_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7622_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7628_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7629_firmware:2.0.2:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7915_firmware:2.0.2:*:*:*:*:*:*:*

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-2021-37568 — 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 →

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