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CVE-2025-63221

28
FAUCET Score

CVE-2025-63221 describes a critical Broken Access Control vulnerability in Axel Technology puma devices running firmware versions 0.8.5 to 1.0.3. This flaw allows unauthenticated remote attackers to access the /cgi-bin/gstFcgi.fcgi endpoint without credentials. The vulnerability carries a CVSS score of 9.1 (CRITICAL) due to its network-based attack vector, low complexity, and severe impact, enabling attackers to list, create, and delete user accounts, including administrative ones, and modify system settings, leading to full device compromise. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.8.5, <= 1.0.3CPE matchmatch criteria
cpe:2.3:o:axeltechnology:puma_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 21st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63221_Axel%20Technology%20puma%20-%20Broken%20Access%20Control
ExploitThird Party Advisory
axeltechnology.com
Product