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CVE-2026-8670— Insecure session handling on metrics web server

CVSS 9.6 · Critical EPSS 0.04% · P12

Affected Version Matrix 1

VendorProductVersion RangeStatus
syslink software AGAvantra< 25.3.1affected
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I. Basic Information for CVE-2026-8670

Vulnerability Information
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Vulnerability Title
Insecure session handling on metrics web server
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的会话过期机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Avantra 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avantra是Avantra公司的一个 SAP 软件。 Avantra 25.3.1之前版本存在安全漏洞，该漏洞源于会话过期不足，可能导致会话重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
syslink software AGAvantra 0 ~ 25.3.1 -

II. Public POCs for CVE-2026-8670

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III. Intelligence Information for CVE-2026-8670

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Vendor Advisories for CVE-2026-8670 (1)

Same Patch Batch · syslink software AG · 2026-05-22 · 4 CVEs total

CVE-2026-86717.5 HIGHLog Files contain encrypted secrets
CVE-2026-86735.9 MEDIUMPassword re-initialization mechanism sends passwords in plain text
CVE-2026-86725.1 MEDIUMDefault credentials for internal DB

IV. Related Vulnerabilities

Same product: Avantra
Same vendor: syslink software AG
Same weakness: CWE-613

V. Comments for CVE-2026-8670

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