CVSS 9.63 sources verified·1 min read
By Lyrie Threat Intelligence·6/2/2026
CRITICAL: CVE-2026-8670 (CVSS 9.6) — avantra avantra
CVE: CVE-2026-8670
CVSS: 9.6 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Severity: CRITICAL
Status: Critical advisory
Affected
- avantra avantra
- linux linux kernel
- microsoft windows
Summary
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.
Verified Sources
References
- https://support.avantra.com/hc/en-us/articles/5533929912351
_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._
Lyrie Verdict
A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.
Validated sources
- [1]NVD
- [2]GitHub Advisory
- [3]MITRE