Heap-based buffer overflow in Opengear IM72XX, CM71XX, and ACM70XX firmware versions 4.8.0 through 5.5.2 on console server appliances allows an unauthenticated remote attacker to crash the index.cgi process via a crafted multipart/form-data POST request containing an overlong Content-Disposition name field.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Opengear IM7200 unaffected
Version Status Constraints
4.8 affected ≤ 5.5.2
Opengear CM7100 unaffected
Version Status Constraints
4.8 affected ≤ 5.5.2
Opengear ACM7000 unaffected
Version Status Constraints
4.8 affected ≤ 5.5.2

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No data.

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://portal.opengear.com/customerservice/s/article/CVE-2026-102212-Opengear-Console-Server-Buffer-Overflow-to-RCE cve-icon cve-icon
https://portal.opengear.com/customerservice/s/article/Release-Notification-Firmware-Version-5-5-3-is-Now-Generally-Available cve-icon cve-icon
History

Sat, 31 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in Opengear IM72XX, CM71XX, and ACM70XX firmware versions 4.8.0 through 5.5.2 on console server appliances allows an unauthenticated remote attacker to crash the index.cgi process via a crafted multipart/form-data POST request containing an overlong Content-Disposition name field.
Title Pre-Auth Heap Buffer Overflow in the Multipart Request
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/S:P/AU:Y/RE:L/U:Red'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Digi

Published:

Updated: 2026-10-31T16:01:56.106Z

Reserved: 2026-09-28T18:23:43.537Z

Link: CVE-2026-102212

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-31T16:16:52.553

Modified: 2026-10-31T16:16:52.553

Link: CVE-2026-102212

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-31T18:00:15Z

Weaknesses