CVE-2021-22642
Ovarro TBox Uncontrolled Resource Consumption
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Ovarro TBox Uncontrolled Resource Consumption
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
- Record
CVE-2021-22642- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2021-9778
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
- Record
EUVD-2021-9778- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f83w-fm29-6mfh
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
- Record
GHSA-f83w-fm29-6mfh- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
- Record
CVE-2021-22642- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22642 is a high vulnerability (CVSS 7.5) in Ovarro Tbox, published July 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. No source names a fixed version.