CVE-2021-21895
Last modified
CVE-2021-21895 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A directory traversal vulnerability exists in the Web Manager FsTFtp functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to FsTFtp file overwrite. EPSS estimates a 2.34% chance of exploitation in the next 30 days.
Description
A directory traversal vulnerability exists in the Web Manager FsTFtp functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to FsTFtp file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Lantronix | Premierwave 2050 Firmware | 8.9.0.0 | R4 |
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1337Exploit, Technical Description, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1337Exploit, Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-21895?
How severe is CVE-2021-21895?
How do I fix CVE-2021-21895?
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.
Related CVEs from 2021
- CVE-2021-2189Vulnerability in the Oracle Sales Offline product of Oracle …7.5
- CVE-2021-21890A stack-based buffer overflow vulnerability exists in the We…9.1
- CVE-2021-21891A stack-based buffer overflow vulnerability exists in the We…9.1
- CVE-2021-21892A stack-based buffer overflow vulnerability exists in the We…9.9
- CVE-2021-21893A use-after-free vulnerability exists in the JavaScript engi…8.8
- CVE-2021-21894A directory traversal vulnerability exists in the Web Manage…9.1
- CVE-2021-21896A directory traversal vulnerability exists in the Web Manage…6.5
- CVE-2021-21897A code execution vulnerability exists in the DL_Dxf::handleL…8.8
- CVE-2021-21898A code execution vulnerability exists in the dwgCompressor::…8.8
- CVE-2021-21899A code execution vulnerability exists in the dwgCompressor::…8.8
- CVE-2021-2190Vulnerability in the Oracle Sales Offline product of Oracle …7.5
- CVE-2021-21900A code execution vulnerability exists in the dxfRW::processL…8.8
Are you affected by CVE-2021-21895?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST