CVE-2022-2471Network attack vector

Remote code execution via unchecked Base64 decoding

Published Sep 15, 2022 · Updated Sep 16, 2024

Stack overflow in five EZVIZ camera models allows remote authenticated users to execute code via a crafted motion-area command. The camera decodes the Base64 payload forwarded through MQTT by /api/device/configMotionDetectArea into a fixed-size stack buffer without checking the decoded length. Any authenticated cloud client can target a compatible device serial number, and successful exploitation grants code execution on the camera.

CVSS severity9.9
Critical
EPSS probability1.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in five EZVIZ camera models allows remote authenticated users to execute code via a crafted motion-area command. The camera decodes the Base64 payload forwarded through MQTT by /api/device/configMotionDetectArea into a fixed-size stack buffer without checking the decoded length. Any authenticated cloud client can target a compatible device serial number, and successful exploitation grants code execution on the camera.

The record

CVE
CVE-2022-2471
Published
Sep 15, 2022
Updated
Sep 16, 2024
Vendor
Hangzhou EZVIZ Network Co., Ltd.
Product
CS-C6N-A0-1C2WFR
Classifications
CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=unspecified <5.3.0 build 220428

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hangzhou EZVIZ Network Co., Ltd. · CS-C6N-A0-1C2WFRversion=unspecified <5.3.0 build 220428
Hangzhou EZVIZ Network Co., Ltd. · CS-C3W-A0-3H4WFRLversion=unspecified <5.3.5 build 220723
Hangzhou EZVIZ Network Co., Ltd. · CS-DB1C-A0-1E2W2FRversion=unspecified <5.3.0 build 220802
Hangzhou EZVIZ Network Co., Ltd. · CS-C6N-B0-1G2WFversion=unspecified <5.3.0 build 220712
Hangzhou EZVIZ Network Co., Ltd. · CS-CV248version=unspecified <5.2.3 build 220725

Published CVSS scores

9.9BitdefenderCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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

No observations available

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

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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