Local privilege escalation via InputMethod deserialization mismatch
Published Mar 27, 2023 · Updated Feb 19, 2025
Privilege escalation in Huawei HarmonyOS and EMUI allows local users to gain elevated access through the InputMethod module. Huawei identifies a serialization/deserialization mismatch in InputMethod but has not published the affected routine or malformed-input handling. Exploitation requires existing low-privilege local access and grants elevated control over the affected device.
Summary
What happened
Privilege escalation in Huawei HarmonyOS and EMUI allows local users to gain elevated access through the InputMethod module. Huawei identifies a serialization/deserialization mismatch in InputMethod but has not published the affected routine or malformed-input handling. Exploitation requires existing low-privilege local access and grants elevated control over the affected device.
The record
- CVE
- CVE-2023-26547
- Published
- Mar 27, 2023
- Updated
- Feb 19, 2025
- Vendor
- Huawei Technologies Co., Ltd.
- Product
- HarmonyOS
- Classifications
- CWE-502, T1404
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 27, 2023CVE publishedPublication date reported by the CVE source.
- Feb 19, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=2.0.0
- Affected versionversion=2.0.1
- Affected versionversion=2.1.0
- Affected versionversion=3.0.0
- Affected versionversion=3.1.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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