What is CVE-2026-6560?

CVE-2026-6560 is a high-severity vulnerability in H3c Magic B0, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-04-19.

How severe is CVE-2026-6560?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in H3c Magic B0

CVE-2026-6560

A security vulnerability has been detected in H3C Magic B0 up to 100R002. This vulnerability affects the function Edit_BasicSSID of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack can…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (16.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R.

Affected products

H3c Magic B0 — versions 100R002

Weakness classification (CWE)

References

VDB-358197 | H3C Magic B0 aspForm Edit_BasicSSID buffer overflow (vdb-entry, technical-description)
VDB-358197 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #788021 | H3C Magic B0 <=100R002 Buffer Overflow (third-party-advisory)
github.com/xiaohaiyang-ai/CVE-Reports/blob/main/Vulnerability-Report.md (exploit)

Frequently asked questions

What is CVE-2026-6560?: CVE-2026-6560 is a high-severity vulnerability in H3c Magic B0, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-04-19.
How severe is CVE-2026-6560?: High severity. CVSS v3 base score is 8.8 out of 10.