How severe is CVE-2023-33374?

CVE-2023-33374 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-33374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33374?

CVE-2023-33374 affects Connectedio Connected Io. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33374?

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

When was CVE-2023-33374 published?

CVE-2023-33374 was published on 2023-08-04 and last updated on 2026-06-17.

CVE-2023-33374

CVE-2023-33374 is a critical-severity vulnerability in Connectedio Connected Io with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Connectedio Connected Io
Published: 2023-08-04
Last modified: 2026-06-17

Description

Connected IO v2.1.0 and prior has a command as part of its communication protocol allowing the management platform to specify arbitrary OS commands for devices to execute. Attackers abusing this dangerous functionality may issue all devices OS commands to execute, resulting in arbitrary remote command execution.

Frequently asked questions

What is CVE-2023-33374?: Connected IO v2.1.0 and prior has a command as part of its communication protocol allowing the management platform to specify arbitrary OS commands for devices to execute. Attackers abusing this dangerous functionality may issue all devices OS commands to execute, resulting in arbitrary remote command execution.
How severe is CVE-2023-33374?: CVE-2023-33374 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-33374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33374?: CVE-2023-33374 affects Connectedio Connected Io. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33374?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-33374 published?: CVE-2023-33374 was published on 2023-08-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:connectedio:connected_io:*:*:*:*:*:*:*:*

More vulnerabilities in Connectedio Connected Io

CVE-2023-33378 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior has an argument injection vulnerability in its AT command message in its communication…
CVE-2023-33377 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior has an OS command injection vulnerability in the set firewall command in part of its…
CVE-2023-33376 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior has an argument injection vulnerability in its iptables command message in its…
CVE-2023-33375 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior has a stack-based buffer overflow vulnerability in its communication protocol, enabling…
CVE-2023-33373 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior keeps passwords and credentials in clear-text format, allowing attackers to exfiltrate…
CVE-2023-33372 — Critical (CVSS 9.8): Connected IO v2.1.0 and prior uses a hard-coded username/password pair embedded in their device's firmware used for…

All CVEs affecting Connectedio Connected Io →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →