Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U H H H 9.8 .0761 94.5 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Jan 27 Reserved by mitre Jan 27 Published (CNA: mitre) Oct 8 ENRICHED — CVE-2021-3331. Received CVSS 9.8 and CPE data from NVD.
WinSCP before 5.17.10 allows remote attackers to execute arbitrary programs when the URL handler encounters a crafted URL that loads session settings. (For example, this is exploitable in a default installation in which WinSCP is the handler for sftp:// URLs.)
| Date | Event | Detail |
|---|---|---|
| January 27, 2021 | Reserved | Reserved by mitre |
| January 27, 2021 | Published | Published (CNA: mitre) |
| October 8, 2026 | ENRICHED | ENRICHED — CVE-2021-3331. Received CVSS 9.8 and CPE data from NVD. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2021-3331 at cve.org
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-3331 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
