6.7

CVE-2026-20589: mediatek, inc. mediatek chipset Out-of-bounds Write

CVSS: 6.7v3.1MediumAnalyzed
Published 05-10-2026Last modified 06-10-2026
Open JSON

Vulnerability summary

CVE-2026-20589 is a medium (CVSS 6.7) Out-of-bounds Write vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.1% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.11%
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 venc, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9606.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

05-10-202619-10-2026
EPSS score
0.11%

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

Mediatek25 products
Mediatek, inc.1 product
  • mediatek chipsetMT2718 | MT6768 | MT6769 | MT6789 | MT6833 | MT6855 | MT6877 | MT8186 | MT8188 | MT8189 | MT8195 | MT8196 | MT8367 | MT8391 | MT8395 | MT8668 | MT8676 | MT8678 | MT8696 | MT8781 | MT8788E | MT8792 | MT8793 | MT8799 | MT8910

2 vendors · 26 products

References

1 links