CVE-2025-54483

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 8759 of biosig.c on the current master branch (35a819fa), when the Tag is 5: else if (tag==5) //0x05: number of channels { uint16_t oldNS=hdr->NS; if (len>4) fprintf(stderr,"Warning MFER tag5 incorrect length %i>4\n",len); curPos += ifread(buf,1,len,hdr);

References

Link	Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2234

Frequently Asked Questions

What is the severity of CVE-2025-54483?: CVE-2025-54483 has been scored as a critical severity vulnerability.
How to fix CVE-2025-54483?: To fix CVE-2025-54483, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54483 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-54483 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54483?: CVE-2025-54483 affects The Biosig Project libbiosig.

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Description

Category

CWE-121 – Stack-based Buffer Overflow

References

Frequently Asked Questions