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Intelbras TIP 125i CVE-2026-101265

| EUVDEUVD-2026-88576 LOW
Information Exposure (CWE-200)
2026-09-29 cna@vuldb.com GHSA-c7j5-fj65-gwq4
1.3
CVSS 4.0 · Vendor: vuldb
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate to device web UI (PR:L)
  2. Exploit
    Request Básico configuration page
  3. Execution
    Inspect returned HTML source
  4. Impact
    Extract embedded sensitive data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation targets the web management interface of the Intelbras TIP 125i VoIP phone (firmware 4.3.35/4.3.41), specifically an unspecified function of the 'Básico' configuration page that embeds sensitive information in the page source. Per the CVSS 4.0 vector, exploitation requires network reachability to the device's web UI (AV:N) plus low-level privileges (PR:L) - so an account or session on the interface - and is rated high-complexity (AC:H) with the vendor explicitly calling exploitability 'difficult.' No user interaction is required (UI:N). Limiting factors: attackers must reach the phone's management interface (typically on an internal/management VLAN, not the public internet), must hold at least low-privilege access, and must satisfy the difficult, high-complexity conditions; impact is confined to a limited confidentiality leak (VC:L) with no integrity or availability effect.

Impact

This is a low-priority issue by every available signal. The vendor (VulDB, via cna@vuldb.com) assigned a CVSS 4.0 base score of just 1.3, and the vector CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N reflects that: while remotely reachable (AV:N), it requires high attack complexity (AC:H) - VulDB explicitly describes exploitability as 'difficult' - some level of privilege (PR:L), and yields only a low confidentiality impact (VC:L) with no integrity or availability impact. The only impact is inclusion of sensitive information in the page source code (CWE-200), i.e. a minor information leak. On the exploitation-status axis, there is no CISA KEV listing and no EPSS score provided, so there is no evidence of active or widespread exploitation; the E:P (Proof-of-Concept) temporal metric and VulDB's note that 'the exploit is publicly available and might be used' indicate publicly available exploit code exists but not that it is being used in the wild. Signals are internally consistent - there is no CVSS-vs-description conflict here - but note the CVSS 4.0 vector is the only quantitative signal; no NVD-native score, EPSS, or SSVC decision points were supplied. Net assessment: a real but very low-severity information-disclosure flaw in a niche device, not a genuine priority.

Exploit ScenarioDerived

An attacker with low-level access to the phone's web management interface repeatedly requests the 'Básico' configuration page and inspects the returned HTML source, where sensitive information is embedded in the page code. Public proof-of-concept exploit code exists (VulDB E:P), but the vendor rates exploitation as difficult (AC:H), so success requires specific conditions and effort. The disclosed data offers only limited confidentiality impact and no direct code execution or takeover.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 29, 2026

Information disclosure in Intelbras TIP 125i VoIP desk phones running firmware 4.3.35 or 4.3.41 allows an attacker who already holds a low-privilege account on the device's web management interface to read sensitive data that the 'Básico' configuration page embeds directly in its page source. Exploitation is remote but rated high-complexity and 'difficult' by the vendor, requiring network reachability to the phone's administrative UI plus at least low-level privileges; there is no user-interaction requirement and no integrity or availability impact - only a limited confidentiality leak. Publicly available exploit code exists, but the flaw is not confirmed actively exploited, and the CVSS 4.0 base score of 1.3 reflects the constrained, low-value exposure.

RemediationAI

No vendor-released patch was identified at time of analysis for CVE-2026-101265; the vendor was contacted early about the disclosure, so administrators should monitor Intelbras's support and firmware pages and the VulDB advisory at https://vuldb.com/vuln/411033 for a fixed build before assuming remediation is available. Until then, apply compensating controls that reduce who can reach the exposed page: place TIP 125i handsets on a dedicated voice/management VLAN, block inbound access to their web management ports (80/443) from user workstations, guest networks, and the internet at the firewall, and allow administration only from a hardened jump host - the trade-off is reduced remote manageability and the need to maintain accurate ACLs. Remove or disable unused low-privilege web accounts, rotate SIP and provisioning credentials plus any admin passwords that may have been rendered in page source, and avoid browsing to the 'Básico' page from shared or untrusted endpoints since the data lands in the client-side response and browser cache. Because a proof of concept is publicly available, prioritize log review for unexpected access to the web UI and treat segmentation plus credential rotation as the primary risk reduction while a firmware fix is pending.

Affected VersionsENISA

TIP 125i 4.3.41
TIP 125i 4.3.35

Affected Packages

euvd tip_125i no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The issue is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), a broad weakness class covering cases where data that should remain server-side is rendered into client-visible output. Here the affected component is an unspecified function behind the 'Básico' (basic settings) page of the Intelbras TIP 125i web administration interface, and the specific failure mode is inclusion of sensitive information in the generated source code - typically values such as credentials, session tokens, provisioning parameters, SIP account details, or internal configuration strings that are written into HTML or embedded JavaScript rather than kept out of the response. Because the disclosure occurs in the HTTP response body of the management console, the underlying exposure is bounded by who can already reach and authenticate to that console: the CVSS 4.0 vector (AV:N/AC:H/AT:N/PR:L/UI:N/VC:L) confirms network attack, high attack complexity, low privileges required, no user interaction, and a limited confidentiality-only impact. The EPSS-style 'E:P' metric in the vector reflects that a proof-of-concept is public, and the high attack-complexity rating plus the vendor's own 'difficult' exploitability description indicate the leak is not trivially extracted. Affected devices are SIP/VoIP desk phones whose web UIs normally sit on internal or management VLANs rather than the public internet, which materially limits the reachable attack surface.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (vuldb) PRIMARY 1.3 LOW
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
vuln.today AI 3.1 LOW

Web UI reachable over network (AV:N) but exploitation is difficult (AC:H) and needs a low-privilege session (PR:L); only a minor info leak (C:L), no integrity/availability impact.

3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (vuldb).

CVSS VectorVendor: vuldb

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

A vulnerability was identified in Intelbras TIP 125i 4.3.35/4.3.41. The affected element is an unknown function of the component Básico Page. Such manipulation leads to inclusion of sensitive information in source code. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is described as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.

Threat Intelligence Overview

EPSS Score
0.2%
Top 90% exploitable
Prevalence
Low
Brazilian-market Intelbras VoIP desk phone, niche telecom hardware
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

6
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +6
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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