CVE-2021-21891
CVSS v3
9.1
CRITICAL
EPSS Score
3.0 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A stack-based buffer overflow vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution in the vulnerable portion of the branch (deletefile). An attacker can make an authenticated HTTP request to trigger this vulnerability.
Technical details
- Published
- 2021-12-22
Frequently asked questions
What is CVE-2021-21891?
A stack-based buffer overflow vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution in the vulnerable portion of the branch (deletefile). An attacker can make an authenticated HTTP request to trigger this vulnerability.
Is CVE-2021-21891 actively exploited?
Active exploitation of CVE-2021-21891 has not been confirmed. The EPSS score is 3.0%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-21891?
CVE-2021-21891 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2021-21891 affecting your environment?
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