How severe is CVE-2023-2443?

CVE-2023-2443 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-2443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2443?

CVE-2023-2443 affects Rockwellautomation Thinmanager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2443?

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-2023-2443 published?

CVE-2023-2443 was published on 2023-05-11 and last updated on 2026-06-17.

CVE-2023-2443

CVE-2023-2443 is a high-severity vulnerability in Rockwellautomation Thinmanager with a CVSS 3.x base score of 7.5. 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-326.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Rockwellautomation Thinmanager
Published: 2023-05-11
Last modified: 2026-06-17

Description

Rockwell Automation ThinManager product allows the use of medium strength ciphers. If the client requests an insecure cipher, a malicious actor could potentially decrypt traffic sent between the client and server API.

Frequently asked questions

What is CVE-2023-2443?: Rockwell Automation ThinManager product allows the use of medium strength ciphers. If the client requests an insecure cipher, a malicious actor could potentially decrypt traffic sent between the client and server API.
How severe is CVE-2023-2443?: CVE-2023-2443 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-2443 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2443?: CVE-2023-2443 affects Rockwellautomation Thinmanager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2443?: 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-2023-2443 published?: CVE-2023-2443 was published on 2023-05-11 and last updated on 2026-06-17.

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1139442

Affected products (1)

cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*

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