VDB
CVE-2026-20408
CVE-2026-20408
PUBLISHED
CVSS 8.5 HIGH
In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.
EPSS 0.01% · 0.5th percentile
Risk Scores
CVSS v4.0
8.5
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.01%
0.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| mediatek | software_development_kit | 0, 0 |
| MediaTek, Inc. | MT6890, MT7615, MT7915, MT7916, MT7981, MT7986 | SDK release 7.6.7.2 and before / openWRT 19.07, 21.02, 23.05 |
| openwrt | openwrt | 23.05.0, 19.07.0, 21.02.0 |
| MediaTek, Inc. | MediaTek chipset | MT6890, MT7981, * |
Timeline
- Feb 2, 2026 EPSS Score
- Feb 2, 2026 CVE Published
- Feb 2, 2026 PoC Published
- Feb 4, 2026 EPSS Score
- Feb 7, 2026 EPSS Score
- Feb 9, 2026 EPSS Score
- Feb 11, 2026 EPSS Score
- Feb 13, 2026 EPSS Score
- Feb 16, 2026 EPSS Score
- Feb 18, 2026 EPSS Score
- Feb 20, 2026 EPSS Score
- Feb 22, 2026 EPSS Score