Is CVE-2026-8671 in the CISA KEV catalog?

No. CVE-2026-8671 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8671?

CVE-2026-8671 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-8671?

CVE-2026-8671 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-8671?

Upgrade avantra to 25.3.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-8671

HIGH

7.5

CVSS v3

NVD

Description

Insertion of sensitive information into log file vulnerability in syslink software AG Avantra on Linux, Windows allows Resource Leak Exposure. This issue affects Avantra: before 25.3.0.

CWE-532

How to fix

Remediation Available

avantraNVD

Affected:< 25.3.0Fixed in:25.3.0CVE-2026-8671derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

support.avantra.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.