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CVE Record

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.

CriticalCVSS 9.3Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

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.
Prepared
Confidence
medium
Sources
4

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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.

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description · low confidence lookup

Credential and access behavior lookup

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-24429 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.3 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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.

ScoreVersionSeverityVectorExploitImpactSource
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-24429Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Shenzhen Tenda Technology Co., Ltd.W30E V20unknown
Weakness

CWE details

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.