How severe is CVE-2023-2262?

CVE-2023-2262 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-2262 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2262?

CVE-2023-2262 primarily affects Rockwellautomation 1756-en2t Series A Firmware. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2262?

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-2023-2262 published?

CVE-2023-2262 was published on 2023-09-20 and last updated on 2026-06-17.

CVE-2023-2262

CVE-2023-2262 is a critical-severity vulnerability in Rockwellautomation 1756-en2t Series A Firmware with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Rockwellautomation 1756-en2t Series A Firmware
Published: 2023-09-20
Last modified: 2026-06-17

Description

A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.

Frequently asked questions

What is CVE-2023-2262?: A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.
How severe is CVE-2023-2262?: CVE-2023-2262 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-2262 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2262?: CVE-2023-2262 primarily affects Rockwellautomation 1756-en2t Series A Firmware. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2262?: 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-2023-2262 published?: CVE-2023-2262 was published on 2023-09-20 and last updated on 2026-06-17.

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140786

Affected products (33)

cpe:2.3:o:rockwellautomation:1756-en2t_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2t_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2t_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2t_series_d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tk_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tk_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tk_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2txt_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2txt_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2txt_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2txt_series_d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tp_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tpk_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trk_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trk_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trk_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trxt_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trxt_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2trxt_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2f_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2f_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2f_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2fk_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2fk_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2fk_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en3tr_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en3tr_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en3trk_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en3trk_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tpxt_series_a_firmware:*:*:*:*:*:*:*:*

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