CVE-2026-18451
Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a predictable time-seeded launch token
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.
INFO
Published Date :
Oct. 27, 2026, 8:16 a.m.
Last Modified :
Oct. 27, 2026, 8:16 a.m.
Remotely Exploit :
Yes !
Source :
def9a96e-e099-41a9-bfac-30fd4f82c411
Affected Products
The following products are affected by CVE-2026-18451
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | def9a96e-e099-41a9-bfac-30fd4f82c411 | ||||
| CVSS 3.1 | LOW | MITRE-CVE |
Solution
- Implement a cryptographically secure random token generation mechanism.
- Increase token length and complexity.
- Rotate session tokens frequently.
- Validate tokens on the server-side.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18451.
| URL | Resource |
|---|---|
| https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18451 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18451
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18451 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18451 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by def9a96e-e099-41a9-bfac-30fd4f82c411
Oct. 27, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Added CWE CWE-337 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/18xxx/CVE-2026-18451.json">CVE-2026-18451</a> Added Reference https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1