How severe is CVE-2023-22599?

CVE-2023-22599 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2023-22599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22599?

CVE-2023-22599 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-2023-22599?

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-2023-22599 published?

CVE-2023-22599 was published on 2023-01-12 and last updated on 2026-06-17.

CVE-2023-22599

CVE-2023-22599 is a high-severity vulnerability in Inhandnetworks Inrouter302 Firmware with a CVSS 3.x base score of 7.0. 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-760.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-760
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-760: Use of a One-way Hash with a Predictable Salt. They send MQTT credentials in response to HTTP/HTTPS requests from the cloud platform. These credentials are encoded using a hardcoded string into an MD5 hash. This string could be easily calculated by an unauthorized user who spoofed sending an HTTP/HTTPS request to the devices. This could result in the affected devices being temporarily disconnected from the cloud platform and allow the user to receive MQTT commands with potentially sensitive information.

Frequently asked questions

What is CVE-2023-22599?: 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-760: Use of a One-way Hash with a Predictable Salt. They send MQTT credentials in response to HTTP/HTTPS requests from the cloud platform. These credentials are encoded using a hardcoded string into an MD5 hash. This string could be easily calculated by an unauthorized user who spoofed sending an HTTP/HTTPS request to the devices. This could result in the affected devices being temporarily disconnected from the cloud platform and allow the user to receive MQTT commands with potentially sensitive information.
How severe is CVE-2023-22599?: CVE-2023-22599 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2023-22599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22599?: CVE-2023-22599 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-2023-22599?: 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-2023-22599 published?: CVE-2023-22599 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…
CVE-2023-22600 — Critical (CVSS 10.0): InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version…
CVE-2022-25932 — Critical (CVSS 9.8): The firmware of InHand Networks InRouter302 V3.5.45 introduces fixes for TALOS-2022-1472 and TALOS-2022-1474. The fixes…
CVE-2022-21182 — High (CVSS 8.8): A privilege escalation vulnerability exists in the router configuration import functionality of InHand Networks…
CVE-2022-21809 — High (CVSS 8.1): A file write vulnerability exists in the httpd upload.cgi functionality of InHand Networks InRouter302 V3.5.4. A…
CVE-2023-22598 — High (CVSS 7.2): InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version…

All CVEs affecting Inhandnetworks Inrouter302 Firmware →

Other CWE-760 vulnerabilities

CVE-2024-13951 — High (CVSS 7.6): One way hash with predictable salt vulnerabilities in ASPECT may expose sensitive information to a potential…
CVE-2026-46749 — High (CVSS 7.5): A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The affected application uses a…
CVE-2024-38881 — High (CVSS 7.5): An issue in Horizon Business Services Inc. Caterease 16.0.1.1663 through 24.0.1.2405 and possibly later versions,…
CVE-2025-9290 — Medium (CVSS 5.9): An authentication weakness was identified in Omada Controllers, Gateways and Access Points, controller-device adoption…
CVE-2020-28214 — Medium (CVSS 5.5): A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all…

Browse all CWE-760 vulnerabilities →