CVE-2026-82693Public exploit

Unauthenticated Telnet enablement via hidden Web UI route

Published Aug 31, 2026 · Updated Aug 31, 2026

Missing authentication in the Tenda AC1206 15.03.06.23 Web UI allows remote attackers to enable Telnet via /goform/telnet. The security handler exempts this route from normal cookie and password checks, after which TendaTelnet kills any existing telnetd process and starts a new daemon bound to the LAN address. The route is reachable from the management network only while the web-admin password is empty; it enables Telnet, while shell access still depends on the daemon's credentials.

CVSS severityUnavailable
Unscored
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in the Tenda AC1206 15.03.06.23 Web UI allows remote attackers to enable Telnet via /goform/telnet. The security handler exempts this route from normal cookie and password checks, after which TendaTelnet kills any existing telnetd process and starts a new daemon bound to the LAN address. The route is reachable from the management network only while the web-admin password is empty; it enables Telnet, while shell access still depends on the daemon's credentials.

The record

CVE
CVE-2026-82693
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC1206
Classifications
CWE-287, CWE-306, T1133
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 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=15.03.06.23

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC1206version=15.03.06.23

Published CVSS scores

10.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10.0VulDBAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
10.0VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
T1133وبية

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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