CVE-2026-20447: mediatek, inc. mediatek chipset Out-of-bounds Read
CVSS: 6.7v3.1MediumAnalyzed
Published 04-05-2026Last modified 05-05-2026
Vulnerability summary
CVE-2026-20447 is a medium (CVSS 6.7) Out-of-bounds Read vulnerability in mediatek, inc. mediatek chipset. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)EPSS score
0.11%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-05-2026PublishedVulnerability first disclosed.
- 05-05-2026Last modifiedVulnerability information updated.
Description
In geniezone, there is a possible escalation of privilege due to a missing bounds check. 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: ALPS10724073; Issue ID: MSV-6296.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.11%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
0.00 pp
From 0.11% on 19-09-2026
19-09-202619-10-2026
EPSS score0.11%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mediatek17 products
Mediatek, inc.1 product
- mediatek chipsetMT6768 | MT6789 | MT6877 | MT6899 | MT6989 | MT6991 | MT6993 | MT8196 | MT8367 | MT8766 | MT8768 | MT8781 | MT8786 | MT8788E | MT8791T | MT8793 | MT8910
2 vendors · 18 products
References
1 links- corp.mediatek.com/product-security-bulletin/May-2026Vendor Advisory