Android
CVE-2026-20416
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain System privilege
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DeliveryInvoke PCIe driver function
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ExploitSend crafted parameter bypassing bounds check
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ExecutionWrite out-of-bounds memory
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ImpactEscalate to higher privilege
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A06:2021 - Vulnerable and Outdated Components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 | Attacker must already possess System-level privileges on the target device. The PCIe driver must be present and accessible. No user interaction required. Remote exploitation impossible due to AV:N indicating network vector is contextual; local system access with System privilege is the concrete requirement. |
| Impact | CVSS 7.2 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: None. Exploitable via local access. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to local escalation of privilege if a malicious actor has already obtained the Syst. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Local privilege escalation in Android's PCIe driver allows system-level attackers to execute arbitrary code through an out-of-bounds write caused by insufficient bounds validation. Exploitation requires pre-existing system privileges but no user interaction, enabling a compromised system component to gain complete device control. No patch is currently available.
Earlier versions of this analysis (1)
In pcie, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. [CVSS 7.2 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service 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 pcie, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10315038 / ALPS10340155; Issue ID: MSV-5155.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
In pcie, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10315038 / ALPS10340155; Issue ID: MSV-5155.
Executive ViewAI
CVE-2026-20416 is a privilege escalation vulnerability in PCIe drivers that could allow an attacker with existing system-level access to gain further elevated privileges. While the immediate attack surface is limited to adversaries already inside your environment, this represents a critical security gap that could amplify the impact of other breaches or insider threats.
Restrict physical and remote access to systems with elevated privileges; implement strict process-level privilege boundaries and capability restrictions; deploy endpoint detection and response (EDR) solutions to monitor for privilege escalation attempts; isolate critical systems from general-use networks; disable non-essential PCIe features if feasible; enforce mandatory access controls (MAC) and application whitelisting on affected systems.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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