CVE-2026-20777

unknowncovered by 1 sourcefirst seen 2026-09-02

Mark Bereza and Lilith Wyatt discovered that BioSig incorrectly handled certain crafted input files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-22891, CVE-2026-20777)

CSIRTS triage

What: Improper handling of crafted input files allows denial of service or arbitrary code execution.
Who is affected: BioSig users processing untrusted input files.
Urgency: Unknown severity but arbitrary code execution capability requires prompt patching.
Action: Apply available security updates for CVE-2026-22891 and CVE-2026-20777.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownUSN-8713-1: BioSig vulnerabilitiesubuntu · 2026-09-02

External references

NVD record for CVE-2026-20777

CVE.org record

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