6.5

CVE-2026-20431: mediatek, inc. mediatek chipset

CVSS: 6.5v3.1MediumAnalyzed
Published 07-04-2026Last modified 07-04-2026
Open JSON

Vulnerability summary

CVE-2026-20431 is a medium (CVSS 6.5) vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.2% 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
0.31%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-04-2026
    PublishedVulnerability first disclosed.
  2. 07-04-2026
    Last modifiedVulnerability information updated.

Description

In Modem, there is a possible system crash due to a logic error. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01106496; Issue ID: MSV-4467.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.31%

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

Mediatek19 products
Mediatek, inc.1 product
  • mediatek chipsetMT6813 | MT6815 | MT6835 | MT6878 | MT6897 | MT6899 | MT6986 | MT6991 | MT6993 | MT8668 | MT8676 | MT8678 | MT8755 | MT8775 | MT8792 | MT8793 | MT8863 | MT8873 | MT8883

2 vendors · 20 products

References

1 links