CVE-2022-20355

Local service crash via malformed PAC URI

Published Aug 9, 2022 · Updated Aug 3, 2024

Improper input validation in Google Android 10 through 12L allows local users to crash a system service through a malformed PAC URI. PacProxyService.get passes the URI to URL.openConnection without rejecting schemes whose connection implementation throws an unhandled UnsupportedOperationException. User execution privileges are required, but no user interaction is needed; exploitation interrupts the system service without reported data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.10%
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 Google Android 10 through 12L allows local users to crash a system service through a malformed PAC URI. PacProxyService.get passes the URI to URL.openConnection without rejecting schemes whose connection implementation throws an unhandled UnsupportedOperationException. User execution privileges are required, but no user interaction is needed; exploitation interrupts the system service without reported data exposure or modification.

The record

CVE
CVE-2022-20355
Published
Aug 9, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-20, T1642
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=Android-10 Android-11 Android-12 Android-12L

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-10 Android-11 Android-12 Android-12L

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
T1642Endpoint Denial of Service

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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