Remote code execution via incorrect IMS bounds check
Published Sep 15, 2026 · Updated Sep 15, 2026
Out-of-bounds write in Google Android IP Multimedia Subsystem allows remote attackers to execute code without user interaction. An incorrect bounds check in the subsystem writes attacker-controlled data beyond an allocated buffer; Google has not disclosed the affected function or message field. Exploitation requires network delivery to the device’s multimedia signaling stack and grants code execution without additional execution privileges.
Summary
What happened
Out-of-bounds write in Google Android IP Multimedia Subsystem allows remote attackers to execute code without user interaction. An incorrect bounds check in the subsystem writes attacker-controlled data beyond an allocated buffer; Google has not disclosed the affected function or message field. Exploitation requires network delivery to the device’s multimedia signaling stack and grants code execution without additional execution privileges.
The record
- CVE
- CVE-2026-55331
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- Product
- Android
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 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=Android kernel
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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