CVE-2019-18989

5.4 mediumEPSS 0.8%

Medium (5.4) in mediatek mt7620n firmware. EPSS 0.8% chance of exploitation in the next 30 days.

A partial authentication bypass vulnerability exists on Mediatek MT7620N 1.06 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful, a response is sent back as an encrypted frame, which would allow an attacker to discern information or potentially modify data.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-290
Published: 2020-09-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mediatek:mt7620n_firmware

References

https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/
https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/

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