CVE-2025-54490

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Source
https://cve.org/CVERecord?id=CVE-2025-54490
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54490.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-54490
Downstream
Published
2025-08-25T14:15:35Z
Modified
2026-04-10T05:29:36Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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 9090 of biosig.c on the current master branch (35a819fa), when the Tag is 64:

            else if (tag==64)     //0x40
            {
                // preamble
                char tmp[256];  // [1]
                curPos += ifread(tmp,1,len,hdr);

In this case, the overflowed buffer is the newly-declared tmp [1] instead of buf. While tmp is larger than buf, having a size of 256 bytes, a stack overflow can still occur in cases where len is encoded using multiple octets and is greater than 256.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54490.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "3.9.1"
            }
        ]
    }
]