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CVE Record

CVE-2026-10181: TRENDnet TEW-432BRP formSysCmd stack-based overflow

A vulnerability was found in TRENDnet TEW-432BRP 3.10B20. The affected element is the function formSysCmd of the file /goform/formSysCmd. Performing a manipulation of the argument submit-url results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.

CriticalCVSS 9Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This CVE affects an obsolete TRENDnet TEW-432BRP router firmware version. A remote attacker with the required access could trigger a stack-based buffer overflow in a system command form handler, risking full device compromise. TRENDnet says the product has been end-of-life since 2009 and cannot be fixed.

Executive priority

Treat this as urgent where the device is present. The business decision is not patching, but removal or strict isolation of obsolete infrastructure with public exploit information and no vendor fix.

Technical view

CVE-2026-10181 is a stack-based buffer overflow in /goform/formSysCmd, specifically formSysCmd handling of the submit-url argument, on TRENDnet TEW-432BRP 3.10B20. The CVSS 2.0 vector indicates network access, low complexity, single authentication, and complete confidentiality, integrity, and availability impact. Public proof-of-concept material is referenced.

Likely exposure

Exposure is limited to TRENDnet TEW-432BRP devices running firmware 3.10B20, especially forgotten edge routers or lab equipment. Internet-reachable management interfaces raise urgency. The source states this only affects unsupported products.

Exploitation context

Sources state the exploit has been made public and could be used. CISA KEV status is false in the bundle, so there is no source-backed evidence here of active exploitation in the wild.

Researcher notes

The evidence is consistent across the supplied CVE and VulDB sources: affected function, parameter, version, remote reachability, and EOL status. Authentication is indicated by the CVSS vector, so validation should distinguish internet exposure from authenticated management access.

Mitigation direction

  • Inventory networks for TRENDnet TEW-432BRP devices and confirm firmware versions.
  • Replace affected devices; the vendor states this EOL product cannot be fixed.
  • Remove internet exposure for any remaining device management interfaces.
  • Restrict management access to trusted administrative networks only.
  • Check TRENDnet and trusted vulnerability feeds for any updated guidance.

Validation and detection

  • Confirm whether any TEW-432BRP device runs firmware 3.10B20.
  • Review external attack surface data for exposed router management services.
  • Check logs for suspicious access to /goform/formSysCmd.
  • Validate segmentation prevents untrusted access to device administration.
  • Document replacement or isolation decisions for each discovered device.
Prepared
Confidence
high
Sources
7

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.

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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.

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cve · low confidence lookup

CVE-2026-10181 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 (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: pocAutomatable: 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-2026-10181Attack 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
TRENDnetTEW-432BRP3.10B20Listed
Weakness

CWE details

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

CWE-119 · source CWE mapping

Improper Restriction of Operations within the Bounds of a Memory Buffer

Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-121 · source CWE mapping

Stack-based Buffer Overflow

Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.