CVE-2026-18870

Description

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.

Overview

State: PUBLISHED
Assigner (CNA): ibm
CVSS severity: MEDIUM
CVSS score: 4.3 / 10
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Effective score: 4.3 / 10 MEDIUM source: CNA overview
CWE(s): CWE-125
Reserved: 2026-08-04
Published: 2026-09-24 14:15 UTC
Last updated: 2026-09-24 14:58 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/18xxx/CVE-2026-18870.json

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-86006
Assigner: ibm
Published: Sep 24, 2026, 2:15:38 PM
Updated: Sep 24, 2026, 2:58:01 PM
EUVD base score (CVSS 3.1): 4.3 / 10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EUVD-reported EPSS: 0.0000
Vendors: IBM
Products: PowerVM Hypervisor (FW1110.00 ≤FW1110.31)

PowerVM Hypervisor (FW1060.00 ≤FW1060.81)

PowerVM Hypervisor (FW950.00 ≤FW950.H3)

PowerVM Hypervisor (FW1120.00 ≤FW1120.01)
Aliases: GHSA-468w-j8gw-m9h2

ENISA description: IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.

EUVD references (1)

https://www.ibm.com/support/pages/node/7289135

Affected products (1)

Vendor	Product	Versions	Platforms
IBM	PowerVM Hypervisor	`FW1120.00` (affected), `FW1110.00` (affected), `FW1060.00` (affected), `FW950.00` (affected)	—

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://www.ibm.com/support/pages/node/7289135 vendor-advisorypatch

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Remediations (10)

CVE-2026-68820 Is in KEV. What BOD 26-04 Requires Now | Qualys

web:blog.qualys.com

Executive Summary CVE - 2026 -68820 is an actively exploited Windows vulnerability listed in CISA's Known Exploited Vulnerabilities (KEV) Catalog, with a remediation deadline as suggested by CISA BOD 26-04. CISA BOD 26-04 introduces risk-based remediation timelines ranging from 3 to 14 days, increasing the pressure on teams to move quickly from patch availability to verified remediation ...

2026-09-25 10:47 UTC
Microsoft Update Catalog

web:catalog.update.microsoft.com

Welcome to the Microsoft Update Catalog site. We want your feedback! Visit our newsgroup or send us an email to provide us with your thoughts and suggestions. To get started using the site, enter in your search terms in the Search box above or visit our FAQ for search tips. |Newsgroup|Send us your feedback

2026-09-25 10:47 UTC
CVE-2026-18870 - This Power System update is being released to address

web:cvefeed.io

The following list is the news that have been mention CVE-2026-18870 vulnerability anywhere in the article. Results are limited to the first 20 news articles due to potential performance issues. The following table lists the changes that have been made to the CVE-2026-18870 vulnerability over time.

2026-09-25 10:47 UTC
August 2026 cumulative update - .NET Framework | Microsoft Learn

web:learn.microsoft.com

Unlike traditional cumulative updates that patch individual components, this update delivers the full .NET Framework 3.5 product as a standalone installer. It replaces any previously installed version.

2026-09-25 10:47 UTC
Security Advisories and Bulletins | Microsoft Learn

web:learn.microsoft.com

In this library you will find the following security documents that have been released by the Microsoft Security Response Center (MSRC). The MSRC investigates all reports of security vulnerabilities affecting Microsoft products and services, and releases these documents as part of the ongoing effort to help you manage security risks and help keep your systems protected. Please use the ...

2026-09-25 10:47 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-25 10:47 UTC
CVE-2026-62878: Patch Windows DNS Server RCE Flaw

web:windowsforum.com

Microsoft published CVE - 2026 -62878 on August 11 as a Windows DNS Server Remote Code Execution Vulnerability, putting systems that run the Windows DNS Server role into the immediate patch -and-verify queue.

2026-09-25 10:47 UTC
Security Bulletin: This Power System update is being released to ... - IBM

web:www.ibm.com

PowerVM Hypervisor could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.

2026-09-25 10:47 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-25 10:47 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-25 10:47 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-18870.json.

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              "value": "<p>Customers with the products below should install FW1110.32(1110_138), FW1120.02(1120_171), or newer to remediate this vulnerability.<br/>Power 11</p><ol><li>IBM Power System E1180 (9080-HEU)</li></ol><p>Customers with the products below should install FW1110.32(1110_160), FW1120.02(1120_195), or newer to remediate this vulnerability.<br/>Power 11</p><ol><li>IBM Power System S1122 (9824-22A)</li><li>IBM Power System S1124 (9824-42A)</li><li>IBM Power System S1122s (9824-22B)</li><li>IBM Power System S1114 (9824-41B)</li><li>IBM Power System L1122 (9856-22H)</li><li>IBM Power System L1124 (9856-42H)</li><li>IBM Power System E1150 (9043-MRU)</li></ol><p>Customers with the products below should install FW1120.02(1120_195), or newer to remediate this vulnerability.</p><p>Power 11</p><ol><li>IBM Power System S1112 (9242-21B, 9242-21T)</li></ol><p><br/>Customers with the products below should install FW1060.82(1060_189), or newer to remediate this vulnerability.<br/>Power 10</p><ol><li>IBM Power System E1080 (9080-HEX)</li></ol><p>Customers with the products below should install\u00a0 FW1060.82(1060_199), or newer to remediate this vulnerability.<br/>Power 10</p><ol><li>IBM Power System S1022 (9105-22A)</li><li>IBM Power System S1024 (9105-42A)</li><li>IBM Power System S1022s (9105-22B)</li><li>IBM Power System S1014 (9105-41B)</li><li>IBM Power System L1022 (9786-22H)</li><li>IBM Power System L1024 (9786-42H)</li><li>IBM Power System E1050 (9043-MRX)</li><li>IBM Power System S1012 (9028-21B)</li></ol><p></p><p>Customers with the products below should install FW950.H4(950_236) or newer to remediate this vulnerability.<br/>Power 9</p><ol><li>IBM Power System S922 (9009-22G)</li><li>IBM Power System H922 (9223-22S)</li><li>IBM Power System S914 (9009-41G)</li><li>IBM Power System S924 (9009-42G)</li><li>IBM Power System H924 (9223-42S)</li><li>IBM Power System E950 (9040-MR9)</li><li>IBM Power System E980 (9080-M9S)</li></ol><p><em>The images mentioned above can be located at IBM Fix Central : </em><a href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"><em>https://www.ibm.com/support/fixcentral/</em></a></p>"
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