High severity · published May 24, 2026
CVE-2026-9393
H3C Magic B0 aspForm Edit_BasicSSID_5G buffer overflow
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability was found in H3C Magic B0 up to 100R002. This affects the function Edit_BasicSSID_5G of the file /goform/aspForm. Performing a manipulation of the argument param results in buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
Magic B0 · H3C
100R002 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9393
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9393
github.com
https://github.com/alc9700jmo/CVE/issues/25
vuldb.com
https://vuldb.com/submit/813477
vuldb.com
https://vuldb.com/vuln/365374
vuldb.com
https://vuldb.com/vuln/365374/cti
More from Magic B0
9.8
CVE-2025-14015
H3C Magic B0 aspForm EditWlanMacList buffer overflow
8.8
CVE-2026-10259
H3C Magic B0 aspForm SetMobileAPInfoById stack-based overflow
8.8
CVE-2026-6560
H3C Magic B0 aspForm Edit_BasicSSID buffer overflow