CVE-2026-0078

Local privilege escalation via oversized proxy strings

Published Jun 1, 2026 · Updated Jun 1, 2026

Improper input validation in Android 14, 15, 16, and 16-qpr2 allows local users to escalate privileges through global proxy configuration. setGlobalProxy in DevicePolicyManagerService accepts proxySpec and exclusionList strings without enforcing maximum lengths, allowing persisted policy state to desynchronize. Exploitation requires low-privileged local code on the device, requires no user interaction, and can compromise confidentiality, integrity, and availability.

CVSS severity7.8
High
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Android 14, 15, 16, and 16-qpr2 allows local users to escalate privileges through global proxy configuration. setGlobalProxy in DevicePolicyManagerService accepts proxySpec and exclusionList strings without enforcing maximum lengths, allowing persisted policy state to desynchronize. Exploitation requires low-privileged local code on the device, requires no user interaction, and can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2026-0078
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
Go standard library
Product
Android
Classifications
CWE-20, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=14
  2. Affected versionversion=15
  3. Affected versionversion=16
  4. Affected versionversion=16-qpr2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Go standard library · Androidversion=14; version=15; version=16; version=16-qpr2

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1068Exploitation 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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