CVE-2021-27893
HIGHCVSS 7/10EPSS 0.38%
Last modified
CVE-2021-27893 is a high-severity vulnerability rated 7/10 on the CVSS scale. SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions. ConnectSecure on Windows is affected.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
Description
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions. ConnectSecure on Windows is affected.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ssh | Tectia Client | < 6.4.19 |
| Ssh | Tectia Connectsecure | All versions |
| Ssh | Tectia Server | < 6.4.19 |
References
- https://info.ssh.com/tectia-vulnerability-cve-2021-27893Vendor Advisory
- https://info.ssh.com/tectia-vulnerability-cve-2021-27893Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27893?
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions. ConnectSecure on Windows is affected.
How severe is CVE-2021-27893?
CVE-2021-27893 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27893?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-27893?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST