CVE-2021-20655
A permanent, source-backed tracker page. Values are shown only when returned; explicit gaps and read failures remain different states.
What it is
ReportedFileZen (V3.0.0 to V4.2.7 and V5.0.0 to V5.0.2) allows a remote attacker with administrator rights to execute arbitrary OS commands via unspecified vectors. Source description excerpt; complete tracked detail loads below.
NVD published: Feb 17, 2021 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What is affected
Reportedsoliton — filezen. Product-level identification only; no affected-version conclusion is available from this field.
NVD published: Feb 17, 2021 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Urgency and basis
ReportedAct now · 555.7
Tracker decision tier from the evidence detailed below · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Exploitation evidence
Reportedkev-listed · VulnCheck KEV
VulnCheck KEV added: Jun 22, 2022 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What to do
ReportedApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Source remediation ↗Tracked source remediation field · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Evidence detail
Loading the full tracker evidence record…