CVE-2021-3331

moderate-risk
Published 2021-01-27

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.)

Do I need to act?

~
6.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: c6cd72a4c5a1d3903aafeaab5b56a9c1b0363407, faa96e8144e6925a380f94a97aa382c9427f688d
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Winscp

References (8)

Patch https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d
Release Notes https://winscp.net/eng/docs/history#5.17.10
Vendor Advisory https://winscp.net/eng/docs/rawsettings
Patch https://winscp.net/tracker/1943
Patch https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d
Release Notes https://winscp.net/eng/docs/history#5.17.10
Vendor Advisory https://winscp.net/eng/docs/rawsettings
Patch https://winscp.net/tracker/1943
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 9/34 · Low
Exposure 5/34 · Minimal