Intelbras SG 2404 PoE L2+ 1.00.70/1.00.72 Web Management Interface /EXCU_SHELL improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.90+

Summaryinfo

A vulnerability, which was classified as critical, has been found in Intelbras SG 2404 PoE L2+ 1.00.70/1.00.72. The impacted element is an unknown function of the file /EXCU_SHELL of the component Web Management Interface. The manipulation leads to improper authentication. This vulnerability is listed as CVE-2026-124577. The attack may be initiated remotely. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Intelbras SG 2404 PoE L2+ 1.00.70/1.00.72 and classified as critical. This issue affects an unknown functionality of the file /EXCU_SHELL of the component Web Management Interface. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The identification of this vulnerability is CVE-2026-124577. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

It is declared as proof-of-concept.

Upgrading to version 1.00.74 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SG 2404 PoE L2+ 1.00.74

Timelineinfo

11/08/2026 Advisory disclosed
11/08/2026 +0 days VulDB entry created
11/08/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CNA: VulDB
CVE: CVE-2026-124577 (🔒)

GCVE (CVE): GCVE-0-2026-124577
GCVE (VulDB): GCVE-100-432923
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/08/2026 18:07
Changes: 11/08/2026 18:07 (55)
Complete: 🔍
Submitter: JoasHS
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1038184: Intelbras SG 2404 PoE L2+ managed switch Firmware 1.00.70, 1.00.72 (hardware B1) Authentication bypass in web management interface allows unauthenticated execution of privileged CLI commands via /EXCU_SHELL (by JoasHS)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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