CVE-2026-24429: Tenda W30E V2 Hardcoded Default Password for Built-in Account
Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) ship with a predefined default password for a built-in authentication account that is not required to be changed during initial configuration. An attacker can leverage these default credentials to gain authenticated access to the management interface.
Security readout for executives and security teams
Plain-English summary
Tenda W30E V2 devices with firmware up to V16.01.0.19(5037) include a built-in account with a predefined password that users are not forced to change. If the management interface is reachable, an attacker may gain authenticated access without stealing a real user’s credentials.
Executive priority
Treat as urgent for exposed devices. Prioritize inventory and management-plane restriction first, then vendor remediation tracking or replacement decisions.
Technical view
CVE-2026-24429 is a CWE-1393 hardcoded default password issue in Shenzhen Tenda W30E V2. The CVSS 4.0 score is 9.3, with network attack vector, low complexity, no privileges, and no user interaction. Sources do not name a patch or confirmed vendor remediation.
Likely exposure
Exposure is most likely where Tenda W30E V2 management interfaces are reachable from untrusted networks, especially internet-facing or poorly segmented admin planes.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Risk remains high because default credentials can enable authenticated management access when reachable.
Researcher notes
Evidence supports a hardcoded default password weakness and high CVSS impact, but the supplied sources do not provide exploit details, patch status, or observed exploitation. Avoid assuming affected CPEs beyond W30E V2.
Mitigation direction
Identify all Tenda W30E V2 devices and firmware versions.
Restrict management access to trusted administrative networks only.
Disable or change built-in/default credentials if vendor-supported.
Monitor Tenda and CVE guidance for patched firmware or formal remediation.
Replace or isolate devices if default account risk cannot be removed.
Validation and detection
Confirm whether any W30E V2 runs firmware up to V16.01.0.19(5037).
Verify management interfaces are not internet-facing.
Review administrative account settings for built-in or default account behavior.
Check logs for unexpected successful management authentications.
Document compensating controls where no vendor fix is available.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · low confidence lookup
CWE-1393: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
1ADP providers
3Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-1393 · source CWE mapping
Use of Default Password
Use of Default Password represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.