5.5

CVE-2026-20500: mediatek, inc. mediatek chipset Improper Certificate Validation

CVSS: 5.5v3.1MediumAnalyzed
Published 07-09-2026Last modified 07-09-2026
Open JSON

Vulnerability summary

CVE-2026-20500 is a medium (CVSS 5.5) Improper Certificate Validation vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.09% chance of exploitation in the next 30 days, higher than 0.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.09%
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. 07-09-2026
    PublishedVulnerability first disclosed.
  2. 07-09-2026
    Last modifiedVulnerability information updated.

Description

In Modem, there is a possible system crash due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01810811; Issue ID: MSV-9232.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.09%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

0.00 pp

From 0.09% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.09%

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

Mediatek22 products
Mediatek, inc.1 product
  • mediatek chipsetMT2716 | MT6835 | MT6858 | MT6878 | MT6881 | MT6897 | MT6899 | MT6982VB | MT6986 | MT6988 | MT6991 | MT6993 | MT8668 | MT8676 | MT8678 | MT8755 | MT8775 | MT8792 | MT8793 | MT8863 | MT8873 | MT8883

2 vendors · 23 products

References

1 links