CVE-2026-18857

Description

IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.

Overview

State: PUBLISHED
Assigner (CNA): ibm
CVSS severity: LOW
CVSS score: 3.4 / 10
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L
Effective score: 3.4 / 10 LOW source: CNA overview
CWE(s): CWE-125
Reserved: 2026-08-04
Published: 2026-09-24 14:13 UTC
Last updated: 2026-09-24 14:54 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/18xxx/CVE-2026-18857.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-2026-85893
Assigner: ibm
Published: Sep 24, 2026, 2:13:50 PM
Updated: Sep 24, 2026, 2:54:35 PM
EUVD base score (CVSS 3.1): 3.4 / 10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L
EUVD-reported EPSS: 0.0000
Vendors: IBM
Products: OPENBMC (FW1060.00 ≤FW1060.81)

OPENBMC (FW1120.00 ≤FW1120.01)

OPENBMC (FW1110.00 ≤FW1110.31)
Aliases: GHSA-34jw-2gcw-f6v2

ENISA description: IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.

EUVD references (1)

https://www.ibm.com/support/pages/node/7289253

Affected products (1)

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

Vendor references (1)

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

https://www.ibm.com/support/pages/node/7289253 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-2026-18556 / CVE-2026-18577 - Arctic Wolf

web:arcticwolf.com

Learn how to protect N-able N-central from active exploitation of CVE - 2026 -18556 and CVE - 2026 -18577 with patching, threat hunting, and mitigation guidance.

2026-09-25 10:47 UTC
N-able N-central Zero-Day Exploited to Take Over Servers and Managed ...

web:cyberpress.org

N-able has confirmed active exploitation of a critical authentication-bypass vulnerability in its N-central remote monitoring and management (RMM) platform, allowing attackers to seize administrative control of servers and pivot to managed endpoints.

2026-09-25 10:47 UTC
N-central 2026.3 Hotfix 2 - Additional Mitigation for CVE-2026-18577

web:status.n-able.com

Download CMMC Download (For CMMC Subscribed Accounts) Build Number : 2026.3.1.10 Last Updated: Aug, 6th 2026 This release supersedes N-central 2026.3 Hotfix 1 (build 2026.3.1.7). To find out everything contained in the 2026.3 release, click this link for the full 2026.3 release notes. As our investigation into the recent N-central security vulnerability ( CVE - 2026 -18577) continues, we are ...

2026-09-25 10:47 UTC
CVE-2026-18577 - vulnerability database | Vulners.com

web:vulners.com

CVE - 2026 -18577 concerns an authentication bypass in N-able N-central resulting from an incomplete patch for CVE - 2026 -18556. Affected builds include versions through 2026.3.1, with N-able releasing hotfix 2026.3.1.7 to address the issue. Multiple c...

2026-09-25 10:47 UTC
N-able N-central Flaw Sees Exploitation: 5 Things To Know - CRN

web:www.crn.com

Attackers have exploited a high-severity vulnerability in N-able's N‑central remote monitoring and management (RMM) platform, the company disclosed.

2026-09-25 10:47 UTC
Attackers Exploit N-able Patch Bypass Flaw on RMM Servers

web:www.darkreading.com

Attackers Exploit N-able Patch Bypass Flaw on RMM Servers Over the weekend, the vendor discovered another vector of authentication bypass CVE - 2026 -18577 that gives attackers administrator access.

2026-09-25 10:47 UTC
Attackers exploit N-able N-central flaw to reach managed endpoints (CVE ...

web:www.helpnetsecurity.com

Attackers are exploiting an authentication bypass vulnerability ( CVE - 2026 -18577) in N-able N-central to gain access to managed endpoints.

2026-09-25 10:47 UTC
CVE-2026-18577: N-able N-central Authentication Bypass ... - Rapid7

web:www.rapid7.com

On August 2, 2026 , N-able published a security advisory for CVE - 2026 -18577, an authentication bypass vulnerability affecting N-central that was discovered being exploited in-the-wild after an incomplete fix for an earlier authentication bypass issue, CVE - 2026 -18556 was disclosed. CVE - 2026 -18577 allows a remote unauthenticated attacker to bypass authentication and obtain administrative control ...

2026-09-25 10:47 UTC
Active Exploitation of N-able N-central Vulnerabilities (CVE-2026-18556 ...

web:www.rescana.com

Executive Summary In July and August 2026 , a critical security incident involving the N-able N-central remote monitoring and management (RMM) platform was disclosed, with attackers successfully compromising servers after an initial vendor fix proved incomplete. The vulnerabilities, tracked as CVE - 2026 -18556 and the subsequent CVE - 2026 -18577, enabled unauthenticated remote attackers to gain ...

2026-09-25 10:47 UTC
Feds get 3 days to patch N-able God mode flaw under active exploit

web:www.theregister.com

CVE - 2026 -18577 is related to an earlier flaw, CVE - 2026 -18556, patched in N-central 2026.2. According to N-able, that fix left another route to exploitation, which attackers began abusing late last month. CISA gave Federal Civilian Executive Branch agencies until August 6 to remediate the flaw. Under Binding Operational Directive 26-04, CISA can impose a three-day deadline on vulnerabilities it ...

2026-09-25 10:47 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-18857.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-18857",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T14:54:25.176870Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-24T14:54:35.705Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:openbmc:fw1120.00:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1120.00.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1120.01:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1120.01.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1110.00:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1110.00.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1110.31:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1110.31.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1060.00:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1060.00.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1060.81:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:openbmc:fw1060.81.0:*:*:*:*:*:*:*"
          ],
          "product": "OPENBMC",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "FW1120.01",
              "status": "affected",
              "version": "FW1120.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW1110.31",
              "status": "affected",
              "version": "FW1110.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW1060.81",
              "status": "affected",
              "version": "FW1060.00",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "<p>IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.</p>"
            }
          ],
          "value": "IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.4,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T14:13:50.386Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7289253"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "<p>Customers with the products below should install FW1120.02(1120_195), FW1110.32(1110_160) or newer to remediate this vulnerability.</p><p>Power 11<br/>1) IBM Power System S1122 (9824-22A)<br/>2) IBM Power System S1124 (9824-42A)<br/>3) IBM Power System S1122s (9824-22B)<br/>4) IBM Power System S1114 (9824-41B)<br/>5) IBM Power System L1122 (9856-22H)<br/>6) IBM Power System L1124 (9856-42H)<br/>7) IBM Power System E1150 (9043-MRU)<br/>8) IBM Power System S1112 (9242-21B, 9242-21T)</p><p>Customers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability.</p><p>Power 10<br/>1) IBM Power System S1022 (9105-22A)<br/>2) IBM Power System S1024 (9105-42A)<br/>3) IBM Power System S1022s (9105-22B)<br/>4) IBM Power System S1014 (9105-41B)<br/>5) IBM Power System L1022 (9786-22H)<br/>6) IBM Power System L1024 (9786-42H)<br/>7) IBM Power System E1050 (9043-MRX)<br/>8) IBM Power System S1012 (9028-21B)</p><p>The images mentioned above can be located at IBM Fix Central : <a href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\">https://www.ibm.com/support/fixcentral/</a></p>"
            }
          ],
          "value": "Customers with the products below should install FW1120.02(1120_195), FW1110.32(1110_160) or newer to remediate this vulnerability.\n\n\n\nPower 11\n1) IBM Power System S1122 (9824-22A)\n2) IBM Power System S1124 (9824-42A)\n3) IBM Power System S1122s (9824-22B)\n4) IBM Power System S1114 (9824-41B)\n5) IBM Power System L1122 (9856-22H)\n6) IBM Power System L1124 (9856-42H)\n7) IBM Power System E1150 (9043-MRU)\n8) IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability.\n\n\n\nPower 10\n1) IBM Power System S1022 (9105-22A)\n2) IBM Power System S1024 (9105-42A)\n3) IBM Power System S1022s (9105-22B)\n4) IBM Power System S1014 (9105-41B)\n5) IBM Power System L1022 (9786-22H)\n6) IBM Power System L1024 (9786-42H)\n7) IBM Power System E1050 (9043-MRX)\n8) IBM Power System S1012 (9028-21B)\n\n\n\nThe images mentioned above can be located at IBM Fix Central :  https://www.ibm.com/support/fixcentral/"
        }
      ],
      "title": "This Power System update is being released to address",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "<p>Only install system firmware from trusted sources.</p>"
            }
          ],
          "value": "Only install system firmware from trusted sources."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-18857",
    "datePublished": "2026-09-24T14:13:50.386Z",
    "dateReserved": "2026-08-04T16:01:27.817Z",
    "dateUpdated": "2026-09-24T14:54:35.705Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}