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CVE-2026-20777

Published: Mar 3, 2026Updated: Mar 5, 2026 Sources: CVE List NVD BDUCWE-122
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.5%
Top 60.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-122

Affected Products

libbiosigBiosig
Library
OSS Libraries / generic-library
libbiosigThe Biosig Project
Library
OSS Libraries / generic-library
libbiosiglibbiosig project
Library
OSS Libraries / generic-library
biosigoss-projectOSS Libraries
the biosig projectoss-projectOSS Librariesaka libbiosig
libbiosig projectoss-projectOSS Librariesaka libbiosig

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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

Timeline

Published
Mar 3, 2026
Last Updated
Mar 5, 2026

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