CVE-2026-8670

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.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://support.avantra.com/hc/en-us/articles/5533929912351	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:avantra:avantra:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:linux:linux_kernel:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

History

No history.

Information

Published : 2026-05-22 14:16

Updated : 2026-07-23 16:10

NVD link : CVE-2026-8670

Mitre link : CVE-2026-8670

CVE.ORG link : CVE-2026-8670

JSON object : View

Products Affected

avantra

avantra

microsoft

windows

linux

linux_kernel

CWE

CWE-613

Insufficient Session Expiration

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