CVE-2026-8855CRITICAL 9.8EPSS p36.1%

CVE-2026-8855CVE-2026-8855

Description

IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication (client authentication).

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.46% probability of exploitation · percentile 36.1% · 2026-06-19T12:03:05Z
Published2026-05-26
Last modified2026-05-26

Underlying weaknesses· 1

CWE-94

References

  1. https://www.ibm.com/support/pages/node/7274065

1

TypeTargetConfidenceTier
WeaknessImproper Control of Generation of Code ('Code Injection')cwe-940%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.