Vulnerability · Published Oct 31, 2026 · Assigned by Digi
CVE-2026-102212Pre-Auth Heap Buffer Overflow in the Multipart Request
High 8.4
In plain English
A high-severity heap buffer overflow in ACM7000 from Opengear. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 4.0)8.4High
Exploit odds (30 days)0.3%top 74.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-122 · 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