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CVE Record

CVE-2026-10188: Tenda W12 httpd cgistaKickOff stack-based overflow

A flaw has been found in Tenda W12 3.0.0.7(4763). This affects the function cgistaKickOff of the file /bin/httpd. Executing a manipulation of the argument staMac can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

CriticalCVSS 9Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CVE-2026-10188 is a critical flaw in Tenda W12 firmware 3.0.0.7(4763). A crafted staMac value can overflow memory in the device httpd service. For executives, the concern is compromise of vulnerable network hardware if the management service is reachable and an attacker has the required access.

Executive priority

Treat this as urgent for any exposed or business-critical Tenda W12 deployment. Prioritize inventory, exposure reduction, and vendor guidance checks because the flaw is critical and public exploit material is reported, but no patch is named in the provided sources.

Technical view

The vulnerability affects /bin/httpd function cgistaKickOff on Tenda W12 3.0.0.7(4763). Manipulating staMac can trigger a stack-based buffer overflow, mapped to CWE-119 and CWE-121. CVSS v2 is 9.0 with network attack vector, low complexity, and single authentication required.

Likely exposure

Exposure is likely limited to organizations running Tenda W12 firmware 3.0.0.7(4763), especially where device administration is reachable from untrusted networks. The CVSS vector indicates authentication is required, so compromised or weak admin access materially increases risk.

Exploitation context

The source bundle states an exploit has been published and may be used. It does not show CISA KEV listing or confirmed active exploitation, so active exploitation should not be claimed from this evidence alone.

Researcher notes

Evidence is strongest for affected product, function, parameter, weakness class, and public exploit availability. The bundle does not provide exploit internals, patch status, or confirmed in-the-wild activity. Avoid expanding scope beyond Tenda W12 3.0.0.7(4763).

Mitigation direction

  • Identify Tenda W12 devices running firmware 3.0.0.7(4763).
  • Check Tenda and VulDB guidance for patched firmware or official mitigation.
  • Restrict administrative access to trusted management networks or VPN only.
  • Remove any internet exposure for the W12 management interface.
  • Review and strengthen administrator credentials for affected devices.

Validation and detection

  • Confirm device model and firmware version from asset inventory or device administration records.
  • Verify whether management access is reachable from untrusted networks.
  • Check vendor advisories for any firmware update or configuration mitigation.
  • Review access logs for unusual authenticated administration activity.
  • Track VulDB CTI updates for any published indicators.
Prepared
Confidence
medium
Sources
6

Public sources used

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-119: 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.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-121: 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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-10188 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9 (2.0)
Known Exploited
No
Published

Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

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.

4CVSS vectors
6Timeline events
1ADP providers
6Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

4 official scores

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
9CVSS 2.0CriticalAV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR810VulDB
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDB
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDB
8.7CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P——VulDB

Vulnerability scoring details

Base CVSS 4.0 score

8.7High
CVSS 4.0 vector shape for CVE-2026-10188Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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. Source timelineVulDB

    Advisory disclosed

  2. Source timelineVulDB

    VulDB entry created

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timelineVulDB

    VulDB entry last update

  5. CVE publishedCVE Program

    The CVE record was published.

  6. 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
TendaW123.0.0.7(4763)Listed
Weakness

CWE details

CWE-119CWE-121

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.