CVE-2026-19750Public exploitNetwork attack vector

Root access via reusable SSH credential

Published Aug 13, 2026 · Updated Aug 14, 2026

Hard-coded SSH credentials attributed to Tenda TX3 V21.x, V22.x, V25.x, V26.x, and V27.x allow remote authenticated users to gain root access. The firmware passwd file stores a reusable root password hash, and the Kylin program starts Dropbear when an administrator enables SSH debugging. The published proof requires web administrator access but identifies TC3 camera firmware rather than the TX3 router, leaving TX3 applicability unverified.

CVSS severity8.1
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Hard-coded SSH credentials attributed to Tenda TX3 V21.x, V22.x, V25.x, V26.x, and V27.x allow remote authenticated users to gain root access. The firmware passwd file stores a reusable root password hash, and the Kylin program starts Dropbear when an administrator enables SSH debugging. The published proof requires web administrator access but identifies TC3 camera firmware rather than the TX3 router, leaving TX3 applicability unverified.

The record

CVE
CVE-2026-19750
Published
Aug 13, 2026
Updated
Aug 14, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
TX3
Classifications
CWE-255, CWE-259, T1078.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V21.*
  2. Affected versionversion=V22.*
  3. Affected versionversion=V25.*
  4. Affected versionversion=V26.*
  5. Affected versionversion=V27.*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Shenzhen Tenda Technology Co., Ltd. · TX3version=V21.*; version=V22.*; version=V25.*; version=V26.*; version=V27.*

Published CVSS scores

7.6VulDB CNAAV:N/AC:H/Au:N/C:C/I:C/A:C
8.1VulDB CNACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2VulDB CNACVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-255Credentials Management Errors
CWE-259Use of Hard-coded Password
T1078.001Default Accounts

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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