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Android Kernel CVE-2026-56978

| EUVDEUVD-2026-78981 HIGH
Classic Buffer Overflow (CWE-120)
2026-09-15 Google_Devices GHSA-5gm2-gwp7-vq25
8.4
CVSS 3.1 · Vendor: Google_Devices
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Severity by source

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

Local unprivileged app (AV:L/PR:L/UI:N); an out-of-bounds READ most directly discloses memory (C:H), so I/A are downgraded to L absent a confirmed write primitive.

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

Primary rating from Vendor (Google_Devices).

CVSS VectorVendor: Google_Devices

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

Lifecycle Timeline

8
Metadata Corrected
Sep 16, 2026 - 17:40 vuln.today
tag: Android added
Analysis Updated
Sep 16, 2026 - 17:38 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Sep 16, 2026 - 17:22 vuln.today
cvss_changed
CVSS changed
Sep 16, 2026 - 17:22 NVD
7.8 (HIGH) 8.4 (HIGH)
Analysis Generated
Sep 16, 2026 - 16:52 vuln.today
CVSS changed
Sep 16, 2026 - 16:22 NVD
7.8 (HIGH)
CVE Published
Sep 15, 2026 - 18:34 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 15, 2026 - 18:34 cve.org
HIGH 7.8

DescriptionCVE.org

In get_global_config_item_addr of gc.c, there is a possible out-of-bounds read 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.

AnalysisAI

Out-of-bounds read in the Android kernel's configuration accessor get_global_config_item_addr() in gc.c allows a local attacker to read memory past the end of an allocation because the routine never validates the requested item index against the bounds of the config region. Google assigns the issue High severity (CVSS 8.4, vector AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting that it can be reached with no additional execution privileges and no user interaction and can be leveraged toward local escalation of privilege on the affected device. …

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Vulnerability AssessmentAI

Risk Assessment This is a genuine but not urgent local privilege-escalation issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Remediation Vendor-released patch: the September 2026 Android Security Bulletin (Pixel) dated 2026-09-01, available at https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01 - the exact patched build or kernel version is not specified in the available data, so verify the applicable build against the bulletin rather than assuming a version number. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, confirm which managed Android and Pixel models and OS builds are affected and verify whether the structured patch feed or the vendor advisory reflects the September 2026 Android/Pixel security bulletin (2026-09-01 patch level) referenced in current intelligence, since the patch field available to us reads 'not available' and that discrepancy must be resolved before planning; flag any device with an unlockable bootloader, sideloaded apps, or high-value executive/administrator data as priority. …

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CVE-2026-56978 vulnerability details – vuln.today

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