CVE-2026-102212

critical

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.

References

https://portal.opengear.com/customerservice/s/article/Release-Notification-Firmware-Version-5-5-3-is-Now-Generally-Available

https://portal.opengear.com/customerservice/s/article/CVE-2026-102212-Opengear-Console-Server-Buffer-Overflow-to-RCE

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114719

Details

Source: Mitre, NVD

Published: 2026-10-31

Updated: 2026-10-31

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.5

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

Severity: Critical