VulnSocial

CVE-2026-8855Disclosure(ibm / aix)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch ibm aix systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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).

ibm CVEsBack to dashboard
1.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-94

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • aix
  • http_server
  • linux_kernel
  • windows

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 2 mentions (2026-05-26); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
ibmlinuxmicrosoft
Products
aixhttp_serverlinux_kernelwindowsz\/os

1 version affected across 5 products

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-05-26: 2Mentions · 2026-05-28: 1Patch / Workaround · 2026-05-28: 1Technical Details · 2026-05-26: 2Technical Details · 2026-05-28: 105-2605-28
Signal classification2 categories
Disclosure
266.7%
Patch
133.3%
Referenced assets2 URLs
By indicator
Classification over time
DateTotalLabels
2026-05-262
Disclosure2
2026-05-281
Patch1
Full discourse3 posts
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH severity CVE-2026-8855 (CVSS 8.1) IBM HTTP Server 8[.]5 & 9[.]0 vulnerable to RCE & DoS when TLS mutual auth is enabled. Affected: Configs with client authentication Impact: Remote code execution possible Patch immediately. #CVE #PatchNow #ThreatIntel https://t.co/4SoTlLFi2O

    Post summary

    CVE-2026-8855 exposes a high‑severity RCE and DoS in IBM HTTP Server 8.5/9.0 when TLS mutual authentication is enabled, and users are urged to patch immediately.

    0000052
    30 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-8855 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). https://www.cve.org/CVERecord?id=CVE-2026-8855 ----- Traducción: CVE-2026-8855 IBM HTTP S… http://infoflow.cloud`

    Post summary

    IBM HTTP Server 8.5 and 9.0 are vulnerable to remote code execution and denial of service when TLS mutual authentication is enabled, as stated in the CVE record.

    0000044
    79 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-8855 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). https://www.cve.org/CVERecord?id=CVE-2026-8855

    Post summary

    The advisory announces that CVE-2026-8855 is a remote code execution and denial‑of‑service flaw in IBM HTTP Server 8.5 and 9.0 when TLS client authentication is enabled; no PoC, exploit, or patches are mentioned.

    00000226
    57.5K followersView on X
CPE platform detail5 entries

5 of 5 entries

PartVendorProductVersionTarget SWTarget HW
OSibmaix---
Appibmhttp_server---
OSibmz\/os---
OSlinuxlinux_kernel---
OSmicrosoftwindows---

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