Description
In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-11-02
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 04 Nov 2026 11:15:00 +0000

Type Values Removed Values Added
Title AVB Signature Verification Bypass Enables Local Privilege Escalation on Android

Wed, 04 Nov 2026 03:45:00 +0000

Type Values Removed Values Added
Title AVB Signature Verification Bypass Enables Local Privilege Escalation on Android

Tue, 03 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Title Signature Verification Bypass in Android Verified Boot Leading to Local Privilege Escalation
Weaknesses CWE-287

Tue, 03 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 02 Nov 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android

Mon, 02 Nov 2026 23:00:00 +0000

Type Values Removed Values Added
Title Signature Verification Bypass in Android Verified Boot Leading to Local Privilege Escalation
Weaknesses CWE-287

Mon, 02 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
Description In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: google_android

Published:

Updated: 2026-11-04T04:56:06.116Z

Reserved: 2026-07-02T06:16:39.216Z

Link: CVE-2026-58956

cve-icon Vulnrichment

Updated: 2026-11-03T18:45:05.409Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-02T20:17:52.167

Modified: 2026-11-04T05:18:56.613

Link: CVE-2026-58956

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T10:45:12Z

Weaknesses