How severe is CVE-2023-1083?

CVE-2023-1083 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-2023-1083 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.

How do I fix CVE-2023-1083?

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.

Does CVE-2023-1083 have an EU (EUVD) identifier?

Yes. CVE-2023-1083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-23370.

When was CVE-2023-1083 published?

CVE-2023-1083 was published on 2024-04-09 and last updated on 2026-06-17.

CVE-2023-1083

CVE-2023-1083 is a critical-severity vulnerability 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-23370
Weakness: CWE-306
Published: 2024-04-09
Last modified: 2026-06-17

Description

An unauthenticated remote attacker who is aware of a MQTT topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.

Frequently asked questions

What is CVE-2023-1083?: An unauthenticated remote attacker who is aware of a MQTT topic name can send and receive messages, including GET/SET configuration commands, reboot commands and firmware updates.
How severe is CVE-2023-1083?: CVE-2023-1083 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-2023-1083 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.
How do I fix CVE-2023-1083?: 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.
Does CVE-2023-1083 have an EU (EUVD) identifier?: Yes. CVE-2023-1083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-23370.
When was CVE-2023-1083 published?: CVE-2023-1083 was published on 2024-04-09 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2024-009

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