CVE-2026-30702Public exploitNetwork attack vector

Unauthenticated administrative access via forced browsing

Published Mar 18, 2026 · Updated Mar 18, 2026

Authentication bypass in Shenzhen Yuner Yipu WDR201A firmware LFMZX28040922V1.02 allows remote attackers to obtain administrative web access. The embedded web interface relies primarily on front-end login logic and serves restricted administrative pages without validating a session cookie. Network access without credentials is sufficient to change the administrator password, update firmware, and use other administrative functions.

CVSS severity9.8
Critical
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Shenzhen Yuner Yipu WDR201A firmware LFMZX28040922V1.02 allows remote attackers to obtain administrative web access. The embedded web interface relies primarily on front-end login logic and serves restricted administrative pages without validating a session cookie. Network access without credentials is sufficient to change the administrator password, update firmware, and use other administrative functions.

The record

CVE
CVE-2026-30702
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-285
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS: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.

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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-285Improper Authorization

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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