What is CVE-2021-22642?

CVE-2021-22642 is a high-severity vulnerability in Ovarro Tbox, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-07-28.

How severe is CVE-2021-22642?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Ovarro Tbox

CVE-2021-22642

An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.008 (53.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ovarro Tbox — versions LT2, MS-CPU32, MS-CPU32-S2
Ovarro Tbox_lt2-530
Ovarro Tbox_lt2-530_firmware
Ovarro Tbox_lt2-532
Ovarro Tbox_lt2-532_firmware
Ovarro Tbox_lt2-540
Ovarro Tbox_lt2-540_firmware
Ovarro Tbox_ms-cpu32
Ovarro Tbox_ms-cpu32_firmware
Ovarro Tbox_ms-cpu32-s2

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-22642?: CVE-2021-22642 is a high-severity vulnerability in Ovarro Tbox, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-07-28.
How severe is CVE-2021-22642?: High severity. CVSS v3 base score is 7.5 out of 10.