CVE-2026-20777

8.1 highEPSS 0.6%

High (8.1) in libbiosig project libbiosig. EPSS 0.6% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability exists in the Nicolet WFT parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted .wft file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

CVSS 3.1

8.1 high

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-122
Published: 2026-03-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libbiosig_project:libbiosig

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2362
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2362

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