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CVE-2021-25857

21
FAUCET Score

CVE-2021-25857 is a high-severity vulnerability affecting pcmt superMicro-CMS version 3.11, allowing authenticated attackers to execute arbitrary code. The vulnerability stems from improper handling of the font_type parameter in setup.php. With a CVSS score of 7.2, this flaw presents a significant risk, enabling full compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and community discussion is minimal, the potential for a high-impact attack remains.

Impacted Technologies

VendorProductVersion(s)CPE
3.11CPE matchmatch criteria
cpe:2.3:a:supermicro-cms_project:supermicro-cms:3.11:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 36th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / pcmt/superMicro-CMS/issues/2
ExploitIssue Tracking