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CVE-2023-40286

24
FAUCET Score

CVE-2023-40286 is a high-severity Cross-Site Scripting (XSS) vulnerability affecting Supermicro X11SSM-F, X11SAE-F, and X11SSE-F devices running firmware version 1.66. An unauthenticated attacker could exploit this remotely with high impact on confidentiality, integrity, and availability, though it requires user interaction and has high attack complexity. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
1.66CPE matchmatch criteria
cpe:2.3:o:supermicro:x11ssm-f_firmware:1.66:*:*:*:*:*:*:*
1.66CPE matchmatch criteria
cpe:2.3:o:supermicro:x11sae-f_firmware:1.66:*:*:*:*:*:*:*
1.66CPE matchmatch criteria
cpe:2.3:o:supermicro:x11sse-f_firmware:1.66:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 37th percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

supermicro.com / en/support/security_BMC_IPMI_Oct_2023
Vendor Advisory
supermicro.com / en/support/security_center
Vendor Advisory