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Vulnerability record · CVE-2026-58930 · published 2 November 2026

CVE-2026-58930: Google android improper verification of cryptographic signature vulnerability

Google · Android

An unprivileged application can exploit a lack of package/signature validation in SystemUI's `RemoteQCController` when resolving a hardcoded `content://` URI. This allows the attacker to squat on a specific authority if the legitimate package is absent, inject spoofed UI elements into the trusted SystemUI Quick Controls panel, and gain a Background Activity Launch (BAL) grant from SystemUI when the user interacts with the spoofed element.

7.8 CVSS 3.1 High EPSS 0.07% · top 100.0% CWE-347 · Improper verification of cryptographic signatureCWE-451 · CWE-451
7.8CVSS 3.1 base score
0.07%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
10 Nov 2026Last modified by NVD

Description

An unprivileged application can exploit a lack of package/signature validation in SystemUI's `RemoteQCController` when resolving a hardcoded `content://` URI. This allows the attacker to squat on a specific authority if the legitimate package is absent, inject spoofed UI elements into the trusted SystemUI Quick Controls panel, and gain a Background Activity Launch (BAL) grant from SystemUI when the user interacts with the spoofed element.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://source.android.com/docs/security/bulletin/aaos/2026/2026-11-01 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-58930), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.