Vulnerability · Published Jan 27, 2021 · Assigned by mitre
CVE-2021-3331
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.7% (higher than 95% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)7.7%top 5.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.)
Affected products (as reported)
References
- https://winscp.net/eng/docs/history#5.17.10 x_refsource_MISC
- https://winscp.net/tracker/1943 x_refsource_MISC
- https://github.com/winscp/winscp/commit/faa96e8144e6925a380f94a97aa382c9427f688d x_refsource_MISC
- https://winscp.net/eng/docs/rawsettings x_refsource_MISC