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CVE Record

CVE-2026-75877: TRENDnet TV-IP751WIC alphapd FUN_0043372C stack-based overflow

A flaw has been found in TRENDnet TV-IP751WIC 11.03.03. This vulnerability affects the function SystemNetworkChanged/SystemDDNSChanged/SystemEmailChanged/SystemFTPChanged/websCheckRealm/FUN_00432574/FUN_0043372C of the component alphapd. Executing a manipulation can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

CriticalCVSS 9.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

TRENDnet TV-IP751WIC cameras running firmware 11.03.03 contain a remotely reachable memory-corruption flaw in the alphapd service. A low-privileged attacker could potentially compromise confidentiality, integrity, and availability. Public exploit material exists, increasing urgency, but the supplied sources do not establish active exploitation.

Executive priority

Treat this as an immediate asset-identification and containment priority. Public exploit material and potentially complete device compromise justify rapid action. Internet-accessible or broadly reachable affected cameras should be isolated first. A vendor patch is not identified in the supplied evidence, so confirm support status and replacement options promptly.

Technical view

CVE-2026-75877 is a stack-based buffer overflow affecting several alphapd functions, including configuration-change handlers and FUN_0043372C. It is remotely attackable with low privileges and no user interaction. The supplied CVSS 3.1 score is 9.9, with scope change and high confidentiality, integrity, and availability impacts.

Likely exposure

Exposure is limited by the supplied evidence to TV-IP751WIC devices running version 11.03.03. Risk is greatest where alphapd is reachable from untrusted networks or accessible through weak device credentials. The CVSS vector indicates low privileges are required; unauthenticated exploitation is not established.

Exploitation context

A public proof of concept is referenced, demonstrating that exploit information is available. However, the source bundle marks this CVE as absent from KEV and provides no evidence of exploitation in the wild. Public availability raises near-term risk without proving operational attacks.

Researcher notes

The affected functions span network, DDNS, email, FTP, realm-checking, and unnamed alphapd routines. CWE-119 and CWE-121 classify the issue as memory corruption and stack overflow. The CVSS vector states PR:L, so reports should not characterize it as unauthenticated. Exact vulnerable inputs, fixed versions, and exploitation telemetry remain unconfirmed here.

Mitigation direction

  • Identify and prioritize TV-IP751WIC devices running firmware 11.03.03.
  • Check TRENDnet guidance for an approved firmware update or replacement recommendation.
  • Block direct internet access and restrict management access to trusted networks.
  • Isolate affected cameras until vendor-supported remediation is confirmed.
  • Replace unsupported devices if no safe vendor remediation is available.

Validation and detection

  • Verify device model and installed firmware through trusted inventory or management interfaces.
  • Confirm affected devices are not directly reachable from the internet.
  • Review firewall rules limiting access to alphapd and device management services.
  • Check authentication and network logs for unexpected access or configuration changes.
  • Confirm remediation against current TRENDnet guidance without running the public exploit.
Prepared
Confidence
high
Sources
4

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.

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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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-75877 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
9.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

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
7Source 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
9.9CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.16VulDB
9.9CVSS 3.0CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.16VulDB
9.4CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P——VulDB
9CVSS 2.0CriticalAV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR810VulDB

Vulnerability scoring details

Base CVSS 4.0 score

9.4Critical
CVSS 4.0 vector shape for CVE-2026-75877Attack 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:H/SI:H/SA:H/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
TRENDnetTV-IP751WIC11.03.03Listed
Weakness

CWE details

CWE-119CWE-121

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