How severe is CVE-2023-36608?

CVE-2023-36608 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-36608 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36608?

CVE-2023-36608 primarily affects Ovarro Tbox Ms-cpu32 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-36608?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-36608 published?

CVE-2023-36608 was published on 2023-07-03 and last updated on 2026-06-17.

CVE-2023-36608

CVE-2023-36608 is a medium-severity vulnerability in Ovarro Tbox Ms-cpu32 Firmware with a CVSS 3.x base score of 6.5. 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-327.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Ovarro Tbox Ms-cpu32 Firmware
Published: 2023-07-03
Last modified: 2026-06-17

Description

The affected TBox RTUs store hashed passwords using MD5 encryption, which is an insecure encryption algorithm.

Frequently asked questions

What is CVE-2023-36608?: The affected TBox RTUs store hashed passwords using MD5 encryption, which is an insecure encryption algorithm.
How severe is CVE-2023-36608?: CVE-2023-36608 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-36608 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36608?: CVE-2023-36608 primarily affects Ovarro Tbox Ms-cpu32 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-36608?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-36608 published?: CVE-2023-36608 was published on 2023-07-03 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-180-03

Affected products (5)

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_lt2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_tg2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ovarro:tbox_rm2_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Ovarro Tbox Ms-cpu32 Firmware

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-2021-22644 — High (CVSS 7.5): Ovarro TBox TWinSoft uses the custom hardcoded user “TWinSoft” with a hardcoded key.
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.

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