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CVE-2025-54480

34
FAUCET Score

CVE-2025-54480 describes a critical stack-based buffer overflow in The Biosig Project libbiosig (versions 3.9.0 and Master Branch 35a819fa) within its MFER parsing functionality. An unauthenticated attacker can achieve arbitrary code execution by providing a specially crafted MFER file, leading to complete compromise of confidentiality, integrity, and availability. This vulnerability carries a CVSS score of 9.8 (Critical) and a FAUCET Risk Score of 95/100, indicating a severe threat with low attack complexity. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness and potential 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
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 32nd 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