CVE-2022-47453

Local service interruption via missing parameter validation

Published Mar 7, 2023 · Updated Mar 5, 2025

Classic buffer overflow in UNISOC wcn service on affected Android chipsets allows local users to interrupt the service. The wcn service fails to validate parameters before using them in a memory-buffer operation, causing access outside the intended bounds. Exploitation is local; published assessments disagree on the required privilege and user-interaction conditions, while the documented consequence is limited to service interruption.

CVSS severity5.2
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Classic buffer overflow in UNISOC wcn service on affected Android chipsets allows local users to interrupt the service. The wcn service fails to validate parameters before using them in a memory-buffer operation, causing access outside the intended bounds. Exploitation is local; published assessments disagree on the required privilege and user-interaction conditions, while the documented consequence is limited to service interruption.

The record

CVE
CVE-2022-47453
Published
Mar 7, 2023
Updated
Mar 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1642
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.2UNISOCCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

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.

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

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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1642Endpoint Denial of Service

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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