How severe is CVE-2023-31151?

CVE-2023-31151 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-31151 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31151?

CVE-2023-31151 primarily affects Selinc Sel-2241 Rtac Module Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-31151?

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

When was CVE-2023-31151 published?

CVE-2023-31151 was published on 2023-05-10 and last updated on 2026-06-17.

CVE-2023-31151

CVE-2023-31151 is a medium-severity vulnerability in Selinc Sel-2241 Rtac Module Firmware with a CVSS 3.x base score of 4.7. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Selinc Sel-2241 Rtac Module Firmware
Published: 2023-05-10
Last modified: 2026-06-17

Description

An Improper Certificate Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface could allow a remote unauthenticated attacker to conduct a man-in-the-middle (MitM) attack. See SEL Service Bulletin dated 2022-11-15 for more details.

Frequently asked questions

What is CVE-2023-31151?: An Improper Certificate Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface could allow a remote unauthenticated attacker to conduct a man-in-the-middle (MitM) attack. See SEL Service Bulletin dated 2022-11-15 for more details.
How severe is CVE-2023-31151?: CVE-2023-31151 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-31151 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31151?: CVE-2023-31151 primarily affects Selinc Sel-2241 Rtac Module Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-31151?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-31151 published?: CVE-2023-31151 was published on 2023-05-10 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:selinc:sel-2241_rtac_module_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3505-3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3530_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3530-4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3532_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3555_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3560e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:selinc:sel-3560s_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Selinc Sel-2241 Rtac Module Firmware

CVE-2023-31149 — Critical (CVSS 9.1): An Improper Input Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller…
CVE-2023-31148 — Critical (CVSS 9.1): An Improper Input Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller…
CVE-2023-31150 — High (CVSS 8.0): A Storing Passwords in a Recoverable Format vulnerability in the Schweitzer Engineering Laboratories Real-Time…
CVE-2023-2310 — Medium (CVSS 6.8): A Channel Accessible by Non-Endpoint vulnerability in the Schweitzer Engineering Laboratories SEL Real-Time Automation…
CVE-2023-31162 — Medium (CVSS 4.8): An Improper Input Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller…
CVE-2023-31165 — Medium (CVSS 4.3): An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Schweitzer…

All CVEs affecting Selinc Sel-2241 Rtac Module Firmware →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →