CVE-2026-20452

highpriority · track · 10EPSS 0.004 · 37 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.43% (37th) EPSS

CVSS 8 · high

Is it mine?

19 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-22

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 2.1 · impact 5.9

v3.17.6highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122US

exploits (1)

Public proof-of-concept and weaponised exploit code.

Hunt-Benito/mediatek-wlan-heap-overflow-cve-2026-20452-filogic-router-rceHunt-Benito/mediatek-wlan-heap-overflow-cve-2026-20452-filogic-router-rcePoC · poc_in_github

affected products (19)

Products and version ranges known to be affected.

Lenovo Computer ThinkPadall versionscert_bundDEcpe:/h:lenovo:computer:thinkpad
MediaTek, Inc. MediaTek chipset≤ MT7916enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7615enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7986enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7990enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT6890enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7915enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7993enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7981enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7992enisa_euvdEU
mediatek mt6890 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt6890_firmware:*:*:*:*:*:*:*:*
mediatek mt7615 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7615_firmware:*:*:*:*:*:*:*:*
mediatek mt7915 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7915_firmware:*:*:*:*:*:*:*:*
mediatek mt7916 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7916_firmware:*:*:*:*:*:*:*:*
mediatek mt7981 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7981_firmware:*:*:*:*:*:*:*:*
mediatek mt7986 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7986_firmware:*:*:*:*:*:*:*:*
mediatek mt7990 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7990_firmware:*:*:*:*:*:*:*:*
mediatek mt7992 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7992_firmware:*:*:*:*:*:*:*:*
mediatek mt7993 firmwareall versionsnvdUScpe:2.3:o:mediatek:mt7993_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1864Lenovo ThinkPad Computer: Mehrere SchwachstellenDeutsch2026-06-09csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Lenovo ThinkPad Computern ausnutzen, um beliebigen Programmcode auszuführen und einen Denial of Service zu verursachen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-06-01modified 2026-07-22

references (4)

External citations — patches, advisories, analysis.

scry

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