Adjacent privilege escalation via modem heap overflow
Published Dec 11, 2025 · Updated Dec 11, 2025
Heap buffer overflow in the Pixel modem on Google Android kernel allows remote authenticated users to gain elevated privileges. NrmmDecoder::DecodeSORTransparentContext in cn_NrmmDecoder.cpp writes beyond a heap allocation while decoding SOR transparent-context data. An attacker needs adjacent-network reach and low privileges, but no user interaction is required, and successful exploitation compromises the device.
Summary
What happened
Heap buffer overflow in the Pixel modem on Google Android kernel allows remote authenticated users to gain elevated privileges. NrmmDecoder::DecodeSORTransparentContext in cn_NrmmDecoder.cpp writes beyond a heap allocation while decoding SOR transparent-context data. An attacker needs adjacent-network reach and low privileges, but no user interaction is required, and successful exploitation compromises the device.
The record
- CVE
- CVE-2025-36923
- Published
- Dec 11, 2025
- Updated
- Dec 11, 2025
- Vendor
- Go standard library
- Product
- Android
- Classifications
- CWE-122, T1404
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 11, 2025CVE publishedPublication date reported by the CVE source.
- Dec 11, 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=Android kernel
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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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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