Paper/Archive/CVE-2021-21890

CVE-2021-21890

talos — A stack-based buffer overflow vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4…

EPSS 3%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (CNA, NVD agree)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 87.7.877 × 2017.5 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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 (deletedir). An attacker can make an authenticated HTTP request to trigger this vulnerability.

Affected

ProductAffectedFixed inSource

LantronixLantronix PremierWave 2050 8.9.0.0R4 (in QEMU)–CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

talos (CNA)9.1CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

reftalosintelligence.com/vulnerability_reports/TALOS-2021-1334