How severe is CVE-2023-22600?

CVE-2023-22600 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2023-22600 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22600?

CVE-2023-22600 primarily affects Inhandnetworks Inrouter302 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-22600?

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-2023-22600 published?

CVE-2023-22600 was published on 2023-01-12 and last updated on 2026-06-17.

CVE-2023-22600

CVE-2023-22600 is a critical-severity vulnerability in Inhandnetworks Inrouter302 Firmware with a CVSS 3.x base score of 10.0. 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Inhandnetworks Inrouter302 Firmware
Published: 2023-01-12
Last modified: 2026-06-17

Description

InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version InRouter6XX-S-V2.3.0.r5542, contain vulnerability CWE-284: Improper Access Control. They allow unauthenticated devices to subscribe to MQTT topics on the same network as the device manager. An unauthorized user who knows of an existing topic name could send and receive messages to and from that topic. This includes the ability to send GET/SET configuration commands, reboot commands, and push firmware updates.

Frequently asked questions

What is CVE-2023-22600?: InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version InRouter6XX-S-V2.3.0.r5542, contain vulnerability CWE-284: Improper Access Control. They allow unauthenticated devices to subscribe to MQTT topics on the same network as the device manager. An unauthorized user who knows of an existing topic name could send and receive messages to and from that topic. This includes the ability to send GET/SET configuration commands, reboot commands, and push firmware updates.
How severe is CVE-2023-22600?: CVE-2023-22600 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2023-22600 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22600?: CVE-2023-22600 primarily affects Inhandnetworks Inrouter302 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-22600?: 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-2023-22600 published?: CVE-2023-22600 was published on 2023-01-12 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-23-012-03

Affected products (2)

cpe:2.3:o:inhandnetworks:inrouter302_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inhandnetworks:inrouter615-s_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Inhandnetworks Inrouter302 Firmware

CVE-2023-22601 — Critical (CVSS 10.0): InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version…
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