How serious is CVE-2026-20777?

This vulnerability has a CVSS score of 8.1 out of 10, classified as HIGH severity. No public exploit code has been identified yet.

Which products are affected by CVE-2026-20777?

CVE-2026-20777 affects libbiosig project libbiosig. Check the full CVE details for specific version information.

How do I fix CVE-2026-20777?

To remediate CVE-2026-20777, check for security patches from libbiosig project. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-20777

High

|8.1

No Exploit

Plain English Summary

AI-powered analysis for quick understanding

An attacker can execute arbitrary code on a system by tricking a user into opening a specially crafted .wft file using the affected version of the libbiosig library. This vulnerability occurs due to a flaw in how the library handles certain files, allowing the attacker to manipulate the program's memory.

Technical Description

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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeUnchanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

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Official References

NIST NVD

Est. Bounty

$3,316($1K-$5K)

Vendor Response

Grade APatched in 2 days

Quick Information

Published

Mar 3, 2026

about 1 month ago

Last Modified

Mar 5, 2026

about 1 month ago

Vendor

libbiosig project

Product

libbiosig

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