CVE-2026-20408

highpriority · track · 0EPSS 0.003 · 22 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (22nd) EPSS

CVSS 8.8 · high

Is it mine?

10 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

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

8.8

010

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

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · 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-787USprimaryCWE-122US

affected products (10)

Products and version ranges known to be affected.

MediaTek, Inc. MediaTek chipset≤ MT7916enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7986enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7615enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7981enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT6890enisa_euvdEU
MediaTek, Inc. MediaTek chipset≤ MT7915enisa_euvdEU
mediatek software development kit≤ 7.6.7.2nvdUScpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*
openwrt openwrt= 19.07.0nvdUScpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*
openwrt openwrt= 21.02.0nvdUScpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*
openwrt openwrt= 23.05.0nvdUScpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2026-02-02modified 2026-06-17

related (16,125)

Related entries.

ID	severity	EPSS	exploitable	published
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In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT critical	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
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Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…

+16120 more

references (4)

External citations — patches, advisories, analysis.

scry

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