CVE-2026-58956
Received Received - Intake

Signature Verification Bypass in Android AVB

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD
CVE-2026-58956

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Google Android 17
Google Android 16-qpr2
Google Android 16
Google Android 15
Google Android 14

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is in the modpowF4 function of avb_rsa.c, where a logic error allows bypassing signature verification. This could enable local privilege escalation without needing extra execution privileges or user interaction.

Impact Analysis

An attacker could exploit this to gain elevated privileges on an affected system, potentially allowing unauthorized access or control. Since no user interaction is required, the risk is higher as exploitation can occur silently.

Mitigation Strategies

Apply the latest security patches from Google for Android systems. Check for updates via system settings or manufacturer support channels. Disable AVB (Android Verified Boot) if not required, but this may impact system integrity.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-58956. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...