8.4

CVE-2026-20523: mediatek, inc. mediatek chipset Out-of-bounds Write

CVSS: 8.4v3.1HighAnalyzed
Published 05-10-2026Last modified 06-10-2026
Open JSON

Vulnerability summary

CVE-2026-20523 is a high (CVSS 8.4) Out-of-bounds Write vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.6% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-10-2026
    PublishedVulnerability first disclosed.
  2. 06-10-2026
    Last modifiedVulnerability information updated.

Description

In neuropilot, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249062; Issue ID: MSV-9171.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

05-10-202619-10-2026
EPSS score
0.13%

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

Mediatek9 products
Mediatek, inc.1 product
  • mediatek chipsetMT6881 | MT6993 | MT8188 | MT8189 | MT8668 | MT8781 | MT8793 | MT8875 | MT8910

2 vendors · 10 products

References

1 links