CVE-2021-47820Public exploitNetwork attack vector

Remote management enablement via forged configuration request

Published Jan 16, 2026 · Updated Jan 16, 2026

Cross-site request forgery in Ubee Interactive EVW327 allows remote attackers to enable remote management on port 8080. The /goform/UbeeMgmtRemoteAccess handler accepts an auto-submitted POST that sets RemoteAccessEnable and RemoteAccessPort without validating request provenance. A browser able to reach the gateway at 192.168.0.1 must load attacker-controlled HTML; the resulting configuration change exposes remote administration on port 8080.

CVSS severity5.1
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Ubee Interactive EVW327 allows remote attackers to enable remote management on port 8080. The /goform/UbeeMgmtRemoteAccess handler accepts an auto-submitted POST that sets RemoteAccessEnable and RemoteAccessPort without validating request provenance. A browser able to reach the gateway at 192.168.0.1 must load attacker-controlled HTML; the resulting configuration change exposes remote administration on port 8080.

The record

CVE
CVE-2021-47820
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
Ubee Interactive
Product
EVW327
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 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=EVW327

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ubee Interactive · EVW327version=EVW327

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

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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