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8.0
CVE-2026-20452
mediatek · mediatek chipset

CVE-2026-20452: In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proxi

Description

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.

Affected Products

VendorProductVersions
mediatekmediatek chipsetMT6890, MT7615, MT7915, MT7916, MT7981, MT7986, MT7990, MT7992, MT7993

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
lenovocomputercert_advisory90%

References

  • https://corp.mediatek.com/product-security-bulletin/June-2026

Related News (2 articles)

Tier B
BSI Advisories18d ago
[NEU] [hoch] Lenovo ThinkPad Computer: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB27d ago
CVE-2026-20452 | MediaTek MT7993 WLAN AP Driver heap-based overflow (MSV-6295)
→ No new info (linked only)
CVSS 3.18.0 HIGH
VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV❌ No
Actively exploited❌ No
CWECWE-122
PublishedJun 1, 2026
Last enriched27d agov2
Trending Score6
Source articles2
Independent2
Info Completeness7/14
Missing: cvss, epss, kev, exploit, patch, iocs, mitre_attack

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Related CVEs (5)

CRITICALCVE-2026-53097EXP
wifi: mt76: mt7996: fix use-after-free bugs in mt7996_mac_dump_work()
Trending: 60
CRITICALCVE-2026-53101
wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync
Trending: 26
CRITICALCVE-2026-53098
wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work()
Trending: 26
MEDIUMCVE-2026-20456
CVE-2026-20456: In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of s
Trending: 5
HIGHCVE-2026-20455
CVE-2026-20455: In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation
Trending: 2

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jun 1, 2026
Discovered by ZDM
Jun 1, 2026
Updated: severity
Jun 1, 2026

Version History

v2
Last enriched 27d ago
v2Tier C27d ago

Updated severity to CRITICAL and clarified that no exploit exists.

severity
via VulDB
v127d ago

Initial creation