What is CVE-2026-20482?

CVE-2026-20482 is a medium-severity vulnerability in Mediatek Mt7902 Firmware, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-08-03.

How severe is CVE-2026-20482?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Mediatek Mt7902 Firmware

CVE-2026-20482

In wlan STA FW, there is a possible system becoming unresponsive due to logging. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00486814; Issue ID: MSV-6824.

EPSS: 0.002 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mediatek Mt7902_firmware
Mediatek Mt7921_firmware
Mediatek Mt7922_firmware
Mediatek Mt8518s_firmware
Mediatek Mt8532_firmware
Mediatek, Inc. Mediatek Chipset — versions MT7902, MT7921, MT7922

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20482?: CVE-2026-20482 is a medium-severity vulnerability in Mediatek Mt7902 Firmware, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-08-03.
How severe is CVE-2026-20482?: Medium severity. CVSS v3 base score is 6.5 out of 10.