Pre-Auth Heap Buffer Overflow in the Multipart Request

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102212
StatePUBLISHED
AssignerDigi
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-31 16:16:52 UTC
Updated2026-10-31 16:16:52 UTC
DescriptionHeap-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.

Risk And Classification

Primary CVSS: v4.0 8.4 HIGH from e8a6bb0b-e373-42b1-a5de-93e314325576

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:L/U:Red

Problem Types: CWE-122 | CWE-122 CWE-122 Heap-based buffer overflow

VersionSourceTypeScoreSeverityVector
4.0e8a6bb0b-e373-42b1-a5de-93e314325576Secondary8.4HIGHCVSS: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/C...
4.0CNACVSS8.4HIGHCVSS: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...

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:L/U:Red

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Opengear IM7200 affected 4.8 5.5.2 firmware Linux
CNA Opengear CM7100 affected 4.8 5.5.2 firmware Linux
CNA Opengear ACM7000 affected 4.8 5.5.2 firmware Linux

References

ReferenceSourceLinkTags
portal.opengear.com/customerservice/s/article/Release-Notification-Firmware-Versi... e8a6bb0b-e373-42b1-a5de-93e314325576 portal.opengear.com
portal.opengear.com/customerservice/s/article/CVE-2026-102212-Opengear-Console-Se... e8a6bb0b-e373-42b1-a5de-93e314325576 portal.opengear.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nick Cerne of Armadin (en)

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