VDB-365197 · CVE-2026-8672 · EUVD-2026-31437

syslink Avantra up to 25.2.x on Linux/Windows default password

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.
4.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in syslink Avantra up to 25.2.x on Linux/Windows. It has been rated as problematic. This affects an unknown function. This manipulation causes default password. This vulnerability is tracked as CVE-2026-8672. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in syslink Avantra up to 25.2.x on Linux/Windows and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a default password vulnerability. The CWE definition for the vulnerability is CWE-1393. The product uses default passwords for potentially critical functionality. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Use of default password vulnerability in syslink software AG Avantra on Linux, Windows allows Try Common or Default Usernames and Passwords. This issue affects Avantra: before 25.3.0.

The advisory is shared at support.avantra.com. This vulnerability is known as CVE-2026-8672 since 05/15/2026. The exploitation appears to be easy. An attack has to be approached locally. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 25.3.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-31437). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

syslink

Name

Avantra

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.1
CNA Vector (NCSC.ch): 🔒

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: Default password
CWE: CWE-1393
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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: Avantra 25.3.0

Timelineinfo

05/15/2026 CVE reserved
05/22/2026 +7 days Advisory disclosed
05/22/2026 +0 days VulDB entry created
05/22/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.avantra.com
Status: Confirmed

CVE: CVE-2026-8672 (🔒)
GCVE (CVE): GCVE-0-2026-8672
GCVE (VulDB): GCVE-100-365197
EUVD: 🔒

Entryinfo

Created: 05/22/2026 15:56
Updated: 05/22/2026 18:43
Changes: 05/22/2026 15:56 (63), 05/22/2026 18:43 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.