CVE-2026-8670

CRITICAL

syslink software Avantra - Insecure Session Handling on Metrics Web Server

Title source: rule
STIX 2.1

Description

Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing Session IDs (aka Session Replay). This issue affects Avantra: before 25.3.1.

References (1)

Core 1
Core References

Scores

CVSS v3 9.6
EPSS 0.0029
EPSS Percentile 20.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-613
Status published
Products (2)
avantra/avantra < 25.3.1
syslink software AG/Avantra < 25.3.1
Published May 22, 2026
Tracked Since May 22, 2026