CVE-2021-27893 json
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions.
published 2021-03-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14630
- cvss
- 7.0
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions. ConnectSecure on Windows is affected.
Patch / fix
- ssh tectia_client 6.4.19
- ssh tectia_server 6.4.19
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
References
-
info.ssh.com
/tectia-vulnerability-cve-2021-27893
vendor-advisory
Sources
- CVE List CVE-2021-27893
- NVD CVE-2021-27893
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.