PULSE
FEED
ransomendzone reclama a Momentum Telecom · Technologyransomendzone reclama a Absolute Bail Bonds · US · Financial Servicesransomeverest reclama a Grundbaulabor Trier GmbH · DE · Manufacturingransomnetrunner reclama a I****** A***** · KWransominterlock reclama a K&A Industries · USransomeverest reclama a Final Notice Before Publication · Otherransompanzer reclama a RE/MAX Germany · DE · Professional Servicesransomcurious worm reclama a i*t*r***t.com · Technologyransomcurious worm reclama a t**a.comransomplay reclama a Frey Properties of Highland LLC · US · Retail & E-Commerceransomplay reclama a ARRB Group · AU · Government & Defenseransomincransom reclama a Advantage Archives · US · Professional Servicesransomincransom reclama a sportsmansguide.com · US · Retail & E-Commerceransomwallstreet reclama a Walgreen Co. · US · Retail & E-Commerceransomendzone reclama a Momentum Telecom · Technologyransomendzone reclama a Absolute Bail Bonds · US · Financial Servicesransomeverest reclama a Grundbaulabor Trier GmbH · DE · Manufacturingransomnetrunner reclama a I****** A***** · KWransominterlock reclama a K&A Industries · USransomeverest reclama a Final Notice Before Publication · Otherransompanzer reclama a RE/MAX Germany · DE · Professional Servicesransomcurious worm reclama a i*t*r***t.com · Technologyransomcurious worm reclama a t**a.comransomplay reclama a Frey Properties of Highland LLC · US · Retail & E-Commerceransomplay reclama a ARRB Group · AU · Government & Defenseransomincransom reclama a Advantage Archives · US · Professional Servicesransomincransom reclama a sportsmansguide.com · US · Retail & E-Commerceransomwallstreet reclama a Walgreen Co. · US · Retail & E-Commerce
← All CVEs
CVE WatchOct 8, 2026

CVE-2021-3331

WinSCP before 5.17.10 allows remote attackers to execute arbitrary programs when the URL handler encounters a crafted URL that loads session

CVSS

9.8

Critical

EPSS

7.7%

p95

KEV

—

Exploit Today

28

0-100

Published: Jan 27, 2021 · Last modified: Oct 8, 2026

EPSS · 30d
7.6%EPSS · 30 days7.7%
2026-10-172026-11-13
Technical description

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.)

Official references
Related CVEs

No related CVEs by CWE or product.