VDB-325859 · CVE-2025-40836 · EUVD-2025-31099

Ericsson Indoor Connect 8855 up to 2025.Q1 Configuration Data improper authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Ericsson Indoor Connect 8855 up to 2025.Q1. The affected element is an unknown function of the component Configuration Data Handler. The manipulation leads to improper authorization. This vulnerability is traded as CVE-2025-40836. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Ericsson Indoor Connect 8855 up to 2025.Q1 and classified as critical. This issue affects some unknown functionality of the component Configuration Data Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Ericsson Indoor Connect 8855 contains an improper input validation vulnerability which if exploited can lead to loss of integrity and confidentiality, as well as unauthorized disclosure and modification of of user and configuration data. It may also be possible to execute commands with escalated privileges, impact service availability, as well as modify system files and configuration data.

The weakness was shared by Telstra. It is possible to read the advisory at ericsson.com. The identification of this vulnerability is CVE-2025-40836 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 2025.Q2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-31099). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Ericsson

Name

Indoor Connect 8855

Version

2025.Q1

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Indoor Connect 8855 2025.Q2

Timelineinfo

04/16/2025 CVE reserved
09/25/2025 +162 days Advisory disclosed
09/25/2025 +0 days VulDB entry created
09/25/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: ericsson.com
Researcher: Telstra
Status: Confirmed

CVE: CVE-2025-40836 (🔒)
GCVE (CVE): GCVE-0-2025-40836
GCVE (VulDB): GCVE-100-325859
EUVD: 🔒

Entryinfo

Created: 09/25/2025 17:36
Updated: 09/25/2025 18:06
Changes: 09/25/2025 17:36 (68), 09/25/2025 18:06 (1)
Complete: 🔍
Cache ID: 216::103

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