Is CVE-2023-0027 in the CISA KEV catalog?

No. CVE-2023-0027 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0027?

CVE-2023-0027 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-0027?

CVE-2023-0027 has an EPSS score of 0.85% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0027?

Upgrade modbus tcp server add on instructions to 2.04.00 or later.

CVE & CISA-KEV Catalog

CVE-2023-0027

MEDIUM

5.3

CVSS v3

NVD

Description

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected device’s Modbus TCP Server AOI information.

CWE-200Information Exposure

How to fix

Remediation Available

modbus tcp server add on instructionsNVD

Affected:>= 2.00.00, < 2.04.00Fixed in:2.04.00CVE-2023-0027derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.85%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Vendor Advisory1

rockwellautomation.custhelp.com

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.