CVE-2026-58854

Local privilege escalation via type confusion

Published Oct 5, 2026 · Updated Oct 5, 2026

Type confusion in Google Android 14, 15, 16, 16-qpr2, and 17 allows local users to elevate privileges via memory corruption. Google's record identifies multiple affected locations but does not disclose the functions or the operation that confuses types. Exploitation requires local execution on an affected device, but no additional execution privileges or user interaction; the precise privilege level gained is undisclosed.

CVSS severityUnavailable
Unscored
EPSS probability0.07%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Google Android 14, 15, 16, 16-qpr2, and 17 allows local users to elevate privileges via memory corruption. Google's record identifies multiple affected locations but does not disclose the functions or the operation that confuses types. Exploitation requires local execution on an affected device, but no additional execution privileges or user interaction; the precise privilege level gained is undisclosed.

The record

CVE
CVE-2026-58854
Published
Oct 5, 2026
Updated
Oct 5, 2026
Vendor
WebM Project
Product
Android
Classifications
T1404
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 5, 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
  5. Affected versionversion=17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

WebM Project · Androidversion=14; version=15; version=16; version=16-qpr2; version=17

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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