Low severity · published Oct 27, 2026
CVE-2026-18451
Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token
New
3.1
CVSS
0.2%
EPSS
No
On KEV
Description
The HTML5 KVM-over-IP console authenticates with a token returned by the web interface. Weaknesses in token generation may allow an attacker to guess the session token and take control of the KVM session.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
MBD-X12SPI · SMCI
01.07.20 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18451
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18451
www.supermicro.com
https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1
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