Android
CVE-2026-0123
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAccess ProcessRxRing function locally
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DeliveryCraft malicious input bypassing bounds check
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ExploitTrigger out of bounds write
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ExecutionOverwrite kernel memory
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ImpactEscalate privileges to root
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Local access to system running vulnerable EfwApTransport component with ProcessRxRing function in efw_ap_transport.cc; no special privilege or user interaction required. |
| Impact | CVSS 8.4 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via local access. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to local escalation of privilege with no additional execution privileges needed. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Uncontrolled buffer writes in Android's EfwApTransport component allow local attackers to achieve privilege escalation without requiring user interaction or special permissions. The vulnerability stems from insufficient bounds checking in the ProcessRxRing function, enabling an attacker with local access to corrupt kernel memory and gain elevated privileges.
Earlier versions of this analysis (1)
In EfwApTransport::ProcessRxRing of efw_ap_transport.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. [CVSS 8.4 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-787 (Out-of-bounds Write). Affects Android. In EfwApTransport::ProcessRxRing of efw_ap_transport.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
In EfwApTransport::ProcessRxRing of efw_ap_transport.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Executive ViewAI
A critical local privilege escalation vulnerability (CVE-2026-0123) exists in EfwApTransport with no available patch. Attackers with local access can exploit an out-of-bounds write to gain elevated privileges, potentially compromising system integrity and sensitive data across affected infrastructure. Immediate action is required to assess exposure and implement containment measures.
Restrict local system access through OS-level privilege management and account controls; implement kernel-level access controls (SELinux/AppArmor) to confine EfwApTransport process privileges; disable EfwApTransport functionality if not operationally required; apply host-based intrusion detection with behavioral rules monitoring for abnormal memory writes in affected processes; maintain enhanced logging and auditing of local privilege escalation attempts; monitor vendor advisories daily for patch availability.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
Affected Products (CPE)CVE.org
Adobe Flash Player before 13.0.0.292 and 14.x through 18.x before 18.0.0.160 on Windows and OS X and before 11.2.202.466
Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in A
Android 3.0 through 4.1.x on Disney Mobile, eAccess, KDDI, NTT DOCOMO, SoftBank, and other devices does not properly imp
Integer overflow in the SampleTable::setSampleToChunkParams function in SampleTable.cpp in libstagefright in Android bef
Apktool versions 2.9.1 and prior contain a path traversal vulnerability when processing Android APK files. Malicious APK
An elevation of privilege vulnerability in the Android system (art). Rated high severity (CVSS 7.8), this vulnerability
The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory allocation during a
Use-after-free vulnerability in Adobe Flash Player before 13.0.0.292 and 14.x through 18.x before 18.0.0.160 on Windows
Use-after-free vulnerability in Adobe Flash Player before 13.0.0.292 and 14.x through 18.x before 18.0.0.160 on Windows
Android 1.6 Donut through 4.2 Jelly Bean does not properly check cryptographic signatures for applications, which allows
luni/src/main/java/java/io/ObjectInputStream.java in the java.io.ObjectInputStream implementation in Android before 5.0.
The Broadcom Wi-Fi driver in the kernel in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49G, and 6.x before 2016-02-01
GitHub PoC
Exploit-DB