CVE-2026-8835

Information disclosure or interruption via untrusted pointer dereference

Published May 26, 2026 · Updated May 26, 2026

Untrusted pointer dereference in IBM HTTP Server 8.5 and 9.0 allows remote authenticated users to expose sensitive data or interrupt service. IBM has not published the affected Administration Server code path or how attacker-controlled data becomes an invalid pointer. Exploitation requires a privileged Administration Server account and adjacent-network access; no integrity modification is reported.

CVSS severity7.3
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in IBM HTTP Server 8.5 and 9.0 allows remote authenticated users to expose sensitive data or interrupt service. IBM has not published the affected Administration Server code path or how attacker-controlled data becomes an invalid pointer. Exploitation requires a privileged Administration Server account and adjacent-network access; no integrity modification is reported.

The record

CVE
CVE-2026-8835
Published
May 26, 2026
Updated
May 26, 2026
Vendor
OpenBMC Project
Product
IBM HTTP Server
Classifications
CWE-822, T1499
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.5.0 <=Interim Fix 002
  2. Affected versionversion=9.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

OpenBMC Project · IBM HTTP Serverversion=8.5.0 <=Interim Fix 002; version=9.0

Published CVSS scores

7.3IBMCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-822Untrusted Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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