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CVE-2025-54484

34
FAUCET Score

CVE-2025-54484 is a critical stack-based buffer overflow vulnerability in The Biosig Project's libbiosig library, affecting versions 3.9.0 and the Master Branch. This flaw, specifically in the MFER parsing functionality, allows an unauthenticated attacker to achieve arbitrary code execution by providing a specially crafted malicious MFER file. With a CVSS score of 9.8 (CRITICAL), the vulnerability has a network attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability. While there are no known public exploits or Metasploit/Nuclei modules, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.9.1CPE matchmatch criteria
cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 31st percentile among its peer group of 36,897 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

talosintelligence.com / vulnerability_reports/TALOS-2025-2234
talosintelligence.com / vulnerability_reports/TALOS-2025-2234
ExploitThird Party Advisory