CVE intelligence and bounded remediation

CVE-2026-20452 — In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow

High CVSS 8

In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295.

Severity
High
CVSS
8 (3.1)
Published
2026-06-01
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-122

Affected products

  • mediatek / mt6890_firmware
  • mediatek / mt7615_firmware
  • mediatek / mt7915_firmware
  • mediatek / mt7916_firmware
  • mediatek / mt7981_firmware
  • mediatek / mt7986_firmware

Showing 6 representative product identities from 9 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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