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9.1
CVE-2021-21874: A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability.
CVE-2021-21874 · published 4 years ago
Summary
A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| lantronix | premierwave_2050_firmware |
8.9.0.0 cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4:*:*:*:*:*:* |
Original advisory text
A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability.
A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability.
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1314 Exploit Third Party Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-78OS Command Injection
Timeline
Published22 Dec 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-21874 · NVD
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