Critical BioSig Vulnerabilities in Ubuntu 26.04 LTS Discovered

Two critical vulnerabilities (CVE-2026-22891, CVE-2026-20777) have been identified in the BioSig library, an open-source software for biomedical signal processing. Discovered by researchers Mark Bereza and Lilith Wyatt, these vulnerabilities allow an attacker to crash the application or execute arbitrary code by opening specially crafted files. Affected systems include Ubuntu 26.04 LTS and earlier versions, with updates available through Ubuntu Pro. Users are urged to apply standard system updates to mitigate risks. The vulnerabilities were published on March 3, 2026, and are now addressed in the latest package versions. The potential impact includes denial of service and unauthorized code execution, which could compromise system integrity. Current status indicates that patches are available, and users should update their systems immediately to prevent exploitation.

Key Points: • Two critical vulnerabilities in BioSig library allow denial of service and arbitrary code execution. • Affected systems include Ubuntu 26.04 LTS and earlier versions; updates are available. • Patches can be applied through standard system updates or via Ubuntu Pro.