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High severity8.8NVD Advisory· Published Feb 2, 2026· Updated Jun 17, 2026

CVE-2026-20408

CVE-2026-20408

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6
  • Mediatek/Software Development Kit
    cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*
    Range: <=7.6.7.2
  • Openwrt/Openwrt3 versions
    cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
    • cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*
    • cpe:2.3:o:openwrt:openwrt:23.05.0:-:*:*:*:*:*:*
  • Mediatek/wlanllm-fuzzy
  • MediaTek, Inc./MediaTek chipsetv5
    Range: MT6890

Patches

Vulnerability mechanics

References

1

News mentions

0

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