CVE-2026-0133

Local privilege escalation via unchecked artifact signing

Published Jun 16, 2026 · Updated Jun 16, 2026

Missing authorization in the Android kernel allows local users to elevate privileges by signing malicious Android Runtime bootclass artifacts. The smmu_attach_dev function in arm-smmu-v3.c omits a permission check before allowing the signing operation on attacker-controlled bootclass artifacts. Local low-privileged execution is required, but user interaction is not; successful exploitation grants elevated device privileges.

CVSS severity7.8
High
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in the Android kernel allows local users to elevate privileges by signing malicious Android Runtime bootclass artifacts. The smmu_attach_dev function in arm-smmu-v3.c omits a permission check before allowing the signing operation on attacker-controlled bootclass artifacts. Local low-privileged execution is required, but user interaction is not; successful exploitation grants elevated device privileges.

The record

CVE
CVE-2026-0133
Published
Jun 16, 2026
Updated
Jun 16, 2026
Vendor
Go standard library
Product
Android
Classifications
CWE-862, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Go standard library · Androidversion=Android kernel

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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