How severe is CVE-2021-22644?

CVE-2021-22644 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-22644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22644?

CVE-2021-22644 primarily affects Ovarro Twinsoft. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22644 published?

CVE-2021-22644 was published on 2022-07-28 and last updated on 2026-06-17.

CVE-2021-22644

CVE-2021-22644 is a high-severity vulnerability in Ovarro Twinsoft with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Ovarro Twinsoft
Published: 2022-07-28
Last modified: 2026-06-17

Description

Ovarro TBox TWinSoft uses the custom hardcoded user “TWinSoft” with a hardcoded key.

Frequently asked questions

What is CVE-2021-22644?: Ovarro TBox TWinSoft uses the custom hardcoded user “TWinSoft” with a hardcoded key.
How severe is CVE-2021-22644?: CVE-2021-22644 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-22644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22644?: CVE-2021-22644 primarily affects Ovarro Twinsoft. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22644 published?: CVE-2021-22644 was published on 2022-07-28 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04

Affected products (8)

cpe:2.3:a:ovarro:twinsoft:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_lt2-530_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_lt2-532_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_lt2-540_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_ms-cpu32_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_ms-cpu32-s2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_rm2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_tg2_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Ovarro Twinsoft

CVE-2021-22648 — High (CVSS 8.8): Ovarro TBox proprietary Modbus file access functions allow attackers to read, alter, or delete the configuration file.
CVE-2021-22646 — High (CVSS 8.8): The “ipk” package containing the configuration created by TWinSoft can be uploaded, extracted, and executed in…
CVE-2021-22650 — High (CVSS 7.5): An attacker may use TWinSoft and a malicious source project file (TPG) to extract files on machine executing Ovarro…
CVE-2021-22642 — High (CVSS 7.5): An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
CVE-2021-22640 — High (CVSS 7.5): An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.

All CVEs affecting Ovarro Twinsoft →

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

CVE-2026-13768 — Critical (CVSS 10.0): Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub…
CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →