CVE-2025-54492
Scores
EPSS
Percentile: 0.0%
CVSS
CVSS Score: 9.8/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Description
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.This vulnerability manifests on line 9141 of biosig.c on the current master branch (35a819fa), when the Tag is 67:
else if (tag==67) //0x43: Sample skew
{
int skew=0; // [1]
curPos += ifread(&skew, 1, len,hdr);
In this case, the address of the newly-defined integer skew [1] is overflowed instead of buf. This means a stack overflow can occur using much smaller values of len in this code path.
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Sources
CWEs
Vulnerable Software (5)
Type: Configuration
Product: biosig
Operating System: debian
{ "unfixed": true}
Source: debian
Type: Configuration
Product: biosig
Operating System: debian trixie 13
{ "unfixed": true}
Source: debian
Type: Configuration
Product: biosig
Operating System: debian bookworm 12
{ "unfixed": true}
Source: debian
Type: Configuration
Product: biosig
Operating System: debian bullseye 11
{ "unfixed": true}
Source: debian
Type: Configuration
Vendor: libbiosig_project
Product: libbiosig
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:libbiosig_project:libbiosig:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.9.1", "vulnerable": true } ], "operator": "OR"}
Source: nvd