CVE-2026-8670

9.6 CRITICAL

Published: May 22, 2026 Modified: June 02, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://support.avantra.com/hc/en-us/articles/5533929912351

Source: vulnerability@ncsc.ch

Mitigation Vendor Advisory

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.6 / 10.0

EPSS (Exploit Probability)

0.0%

15th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-613

Affected Vendors

avantra linux microsoft

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