Buffer overflow in H3c Magic B3
CVE-2026-8764
A security vulnerability has been detected in H3C Magic B3 up to 100R002. This affects the function UpdateWanParams of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack may be performed…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (15.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- H3c Magic B3 — versions 100R002
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-8764?
- CVE-2026-8764 is a high-severity vulnerability in H3c Magic B3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.2/10. Published 2026-05-17.
- How severe is CVE-2026-8764?
- High severity. CVSS v3 base score is 7.2 out of 10.