Unrecoverable denial of service via out-of-bounds write
Published May 19, 2026 · Updated May 19, 2026
Out-of-bounds write in OpenHarmony kernel_liteos_a 5.0.3 through 6.0 allows local users to cause an unrecoverable system failure. OpenHarmony identifies the affected kernel repository but has not disclosed the buffer, input path, or missing bounds check that permits the write. Low local privileges and no user interaction are required, and the resulting denial of service cannot be recovered through normal operation.
Summary
What happened
Out-of-bounds write in OpenHarmony kernel_liteos_a 5.0.3 through 6.0 allows local users to cause an unrecoverable system failure. OpenHarmony identifies the affected kernel repository but has not disclosed the buffer, input path, or missing bounds check that permits the write. Low local privileges and no user interaction are required, and the resulting denial of service cannot be recovered through normal operation.
The record
- CVE
- CVE-2026-25781
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- OpenAtom Foundation
- Product
- OpenHarmony
- Classifications
- CWE-787, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 19, 2026CVE publishedPublication date reported by the CVE source.
- May 19, 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=v5.0.3 <=v6.0
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
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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