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Android CVE-2026-49921

| EUVDEUVD-2026-74013 CRITICAL
Heap-based Buffer Overflow (CWE-122)
2026-09-08 security@android.com GHSA-cc5m-pgpm-8g33
9.8
CVSS 3.1 · Vendor: android
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Severity by source

Vendor (android) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Description explicitly states no privileges and no user interaction with RCE impact; retained AV:N from the vendor vector though the true remote surface is unconfirmed and could be local/proximal.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (android).

CVSS VectorVendor: android

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Metadata Corrected
Sep 08, 2026 - 22:40 vuln.today
tag: Android added
Analysis Generated
Sep 08, 2026 - 22:13 vuln.today
CVSS changed
Sep 08, 2026 - 20:23 NVD
9.8 (None) 9.8 (CRITICAL)
CVE Published
Sep 08, 2026 - 19:17 cve.org
CRITICAL 9.8

DescriptionCVE.org

In multiple locations, there is a possible memory safety issue due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

AnalysisAI

Remote code execution in Google Android (versions 14 through 17, including 16-qpr2) arises from a heap buffer overflow (CWE-122) present in multiple system code paths, per the September 2026 Android Security Bulletin. The flaw is reported by Google's Android security team as exploitable with no additional execution privileges and no user interaction, giving a remote attacker full compromise of the affected process context. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Per the description, exploitation requires no user interaction and no additional execution privileges, and the supplied CVSS vector marks it network-reachable and unauthenticated (AV:N/PR:N/UI:N) against affected Android 14-17 builds prior to the 2026-09-01 patch level. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, score 9.8) describes remote, unauthenticated, no-interaction RCE with total impact - the maximum-severity profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the September 2026 Android security patch level (patch level 2026-09-01 or later) as delivered by Google or the device OEM; this is the primary and only confirmed fix, documented at https://source.android.com/docs/security/bulletin/2026/2026-09-01 - treat this as 'Patch available per vendor advisory' since an exact per-component fixed version is not enumerated in the input. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: initiate comprehensive inventory of all enterprise and personal devices running Android 14, 15, 16, 16-qpr2, or 17 through mobile device management (MDM) systems and asset registers. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-49921 vulnerability details – vuln.today

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