CVE-2026-33357Public exploitNetwork attack vector

WAN IP disclosure via unauthorized device status query

Published May 11, 2026 · Updated May 11, 2026

Missing authorization in Meari SDK for firmID=8 allows remote attackers to read arbitrary devices' WAN IP addresses. The GET /openapi/device/status endpoint accepts an attacker-supplied serial number and returns wan_ip, relay_server, and tutk_uid without checking authentication or device ownership. A valid HMAC-SHA1 signature is required, but a static OpenAPI key embedded in Meari-based client applications lets unauthenticated remote attackers generate it.

CVSS severity7.5
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Meari SDK for firmID=8 allows remote attackers to read arbitrary devices' WAN IP addresses. The GET /openapi/device/status endpoint accepts an attacker-supplied serial number and returns wan_ip, relay_server, and tutk_uid without checking authentication or device ownership. A valid HMAC-SHA1 signature is required, but a static OpenAPI key embedded in Meari-based client applications lets unauthenticated remote attackers generate it.

The record

CVE
CVE-2026-33357
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Meari
Product
Meari SDK
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=firmID=8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Meari · Meari SDKversion=firmID=8

Published CVSS scores

7.5runZeroCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

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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