6.5

CVE-2026-20419: mediatek, inc. mediatek chipset

CVSS: 6.5v3.1MediumModified
Published 02-02-2026Last modified 30-03-2026
Open JSON

Vulnerability summary

CVE-2026-20419 is a medium (CVSS 6.5) vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.4% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-02-2026
    PublishedVulnerability first disclosed.
  2. 30-03-2026
    Last modifiedVulnerability information updated.

Description

In wlan AP/STA firmware, there is a possible system becoming irresponsive due to an uncaught exception. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461663 / WCNCR00463309; Issue ID: MSV-4852.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.02 pp

From 0.77% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mediatek2 products
Mediatek, inc.1 product
  • mediatek chipsetMT6890 | MT6989TB | MT7902 | MT7915 | MT7916 | MT7920 | MT7921 | MT7922 | MT7925 | MT7927 | MT7981 | MT7986 | MT8196 | MT8668 | MT8676 | MT8678 | MT8775 | MT8791T | MT8792 | MT8793 | MT8796 | MT8873 | MT8883 | MT8893 | MT8910
Openwrt1 product

3 vendors · 4 products

References

1 links