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Android Kernel CVE-2026-58721

| EUVDEUVD-2026-79008 MEDIUM
Use of Uninitialized Variable (CWE-457)
2026-09-15 Google_Devices GHSA-vf42-cpqj-3x47
4.4
CVSS 3.1 · Vendor: Google_Devices
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Severity by source

Vendor (Google_Devices) PRIMARY
4.4 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
vuln.today AI
4.4 MEDIUM

Local vector with no user interaction, but exploitation demands pre-existing System privileges, so PR:H and no integrity or availability impact.

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

Primary rating from Vendor (Google_Devices).

CVSS VectorVendor: Google_Devices

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

Lifecycle Timeline

5
Metadata Corrected
Sep 15, 2026 - 22:40 vuln.today
tag: Android added
Analysis Generated
Sep 15, 2026 - 22:02 vuln.today
CVSS changed
Sep 15, 2026 - 20:37 NVD
4.4 (MEDIUM)
CVE Published
Sep 15, 2026 - 18:34 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 15, 2026 - 18:34 cve.org
MEDIUM 4.4

DescriptionCVE.org

In multiple locations, there is a possible information disclosure due to uninitialized memory use. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.

AnalysisAI

Uninitialized memory use in multiple locations of the Android kernel allows a locally-positioned attacker who already holds System-level execution privileges to read stale kernel memory contents, resulting in information disclosure. The flaw is rated CVSS 4.4 (AV:L/PR:H) and affects Android builds covered by the September 2026 Pixel/Android Security Bulletin; user interaction is not required. …

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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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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to already possess System execution privileges on the target Android device (CVSS PR:H) together with local access to invoke the affected kernel interfaces (AV:L); no user interaction is required (UI:N) and no network reachability is involved. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N, 4.4) describes a low-severity, non-automatable disclosure: exploitation is local and requires the attacker to already hold System execution privileges, which is a significant capability barrier that outweighs the merely 'Low' attack complexity. … 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 Android security patch level containing the September 2026 Pixel bulletin fixes, available via https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01 - the vendor-released patch is delivered as an OTA/security update from Google and OEMs, so the concrete action is to upgrade affected devices to the September 2026 (2026-09-01) patch level or later; the bulletin should be consulted for the exact patched build numbers since NVD's CPE does not enumerate them. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-58721 vulnerability details – vuln.today

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