CVE-2026-20777
Publication date 3 March 2026
Last updated 2 September 2026
Ubuntu priority
Medium
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| biosig | 26.04 LTS resolute |
Fixed 3.9.0-1ubuntu0.1~esm1
|
| 25.10 questing | Ignored end of life, was needs-triage | |
| 24.04 LTS noble |
Fixed 2.6.0-1ubuntu1+esm1
|
|
| 22.04 LTS jammy |
Not affected
|
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CVSS version: CVSS v3.0
Base score 8.1 · High
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8713-1
- BioSig vulnerabilities
- 2 September 2026