Local privilege escalation via geniezone race condition
Published Jun 1, 2026 · Updated Jun 1, 2026
Local privilege escalation in geniezone on affected MediaTek chipsets allows System-privileged local users to gain elevated access. A race condition in the geniezone subcomponent permits an out-of-bounds write, but MediaTek has not disclosed the affected code path or raced operations. Exploitation requires existing System privilege and no user interaction; MediaTek has not published the resulting privilege level.
Summary
What happened
Local privilege escalation in geniezone on affected MediaTek chipsets allows System-privileged local users to gain elevated access. A race condition in the geniezone subcomponent permits an out-of-bounds write, but MediaTek has not disclosed the affected code path or raced operations. Exploitation requires existing System privilege and no user interaction; MediaTek has not published the resulting privilege level.
The record
- CVE
- CVE-2026-20454
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Vendor
- MediaTek
- Product
- MediaTek Chipset
- Classifications
- CWE-367, CAPEC-29, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 1, 2026CVE publishedPublication date reported by the CVE source.
- Jun 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=MT6739
- Affected versionversion=MT6761
- Affected versionversion=MT6765
- Affected versionversion=MT6768
- Affected versionversion=MT6781
- Affected versionversion=MT6789
- Affected versionversion=MT6835
- Affected versionversion=MT6853
- Affected versionversion=MT6855
- Affected versionversion=MT6877
- Affected versionversion=MT6878
- Affected versionversion=MT6879
- Affected versionversion=MT6883
- Affected versionversion=MT6885
- Affected versionversion=MT6886
- Affected versionversion=MT6889
- Affected versionversion=MT6893
- Affected versionversion=MT6895
- Affected versionversion=MT6897
- Affected versionversion=MT6899
- Affected versionversion=MT6983
- Affected versionversion=MT6985
- Affected versionversion=MT6989
- Affected versionversion=MT6991
- Affected versionversion=MT8673
- Affected versionversion=MT8765
- Affected versionversion=MT8766
- Affected versionversion=MT8768
- Affected versionversion=MT8781
- Affected versionversion=MT8786
- Affected versionversion=MT8788
- Affected versionversion=MT8791T
- Affected versionversion=MT8793
- Affected versionversion=MT8797
- Affected versionversion=MT8798
- Affected versionversion=MT8910
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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