What is CVE-2025-71261?

CVE-2025-71261 is a high-severity vulnerability in SUSE Harvester, classified under Improper Certificate Validation. CVSS score: 8.6/10. Published 2026-06-16.

How severe is CVE-2025-71261?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in SUSE Harvester

CVE-2025-71261

An attacker with network-level access between the SUSE Virtualization and Rancher Manager in SUSE Harvester before 1.8.0 could interfere with the TLS handshake and abuse it to bypass TLS as a security control.

Vulnerability class: Improper Certificate Validation

Published 2026-06-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

SUSE Harvester — versions 0

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

github.com/harvester/harvester/security/advisories/GHSA-pgh9-mpwc-8jjf (vendor-advisory)

Frequently asked questions

What is CVE-2025-71261?: CVE-2025-71261 is a high-severity vulnerability in SUSE Harvester, classified under Improper Certificate Validation. CVSS score: 8.6/10. Published 2026-06-16.
How severe is CVE-2025-71261?: High severity. CVSS v3 base score is 8.6 out of 10.