Local information disclosure via signal handler race
Published May 19, 2026 · Updated May 19, 2026
Signal handler race condition in OpenHarmony multimedia_audio_framework 5.0.3 through 6.0 allows local users to disclose sensitive data. OpenHarmony has not published the affected function, shared state, signal sequence, or other code-level operation that causes the disclosure. Exploitation requires low-privileged local access and a successful race; the reported consequence is confidentiality loss only.
Summary
What happened
Signal handler race condition in OpenHarmony multimedia_audio_framework 5.0.3 through 6.0 allows local users to disclose sensitive data. OpenHarmony has not published the affected function, shared state, signal sequence, or other code-level operation that causes the disclosure. Exploitation requires low-privileged local access and a successful race; the reported consequence is confidentiality loss only.
The record
- CVE
- CVE-2026-27766
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- OpenHarmony
- Product
- OpenHarmony
- Classifications
- CWE-364
- 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
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
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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