How severe is CVE-2023-2374?

CVE-2023-2374 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-2374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2374?

CVE-2023-2374 primarily affects Ui Er-x Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2374?

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

When was CVE-2023-2374 published?

CVE-2023-2374 was published on 2023-04-28 and last updated on 2026-06-17.

CVE-2023-2374

CVE-2023-2374 is a medium-severity vulnerability in Ui Er-x Firmware with a CVSS 3.x base score of 6.3. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 5% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Ui Er-x Firmware
Published: 2023-04-28
Last modified: 2026-06-17

Description

A vulnerability has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6 and classified as critical. This vulnerability affects unknown code of the component Web Management Interface. The manipulation of the argument ecn-down leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-227650 is the identifier assigned to this vulnerability.

Frequently asked questions

What is CVE-2023-2374?: A vulnerability has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6 and classified as critical. This vulnerability affects unknown code of the component Web Management Interface. The manipulation of the argument ecn-down leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-227650 is the identifier assigned to this vulnerability.
How severe is CVE-2023-2374?: CVE-2023-2374 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-2374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2374?: CVE-2023-2374 primarily affects Ui Er-x Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2374?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-2374 published?: CVE-2023-2374 was published on 2023-04-28 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:ui:er-x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:-:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:hotfix2:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:hotfix3:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:hotfix4:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:hotfix5:*:*:*:*:*:*
cpe:2.3:o:ui:er-x_firmware:2.0.9:hotfix6:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:2.0.9:-:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:2.0.9:hotfix2:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:2.0.9:hotfix4:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:2.0.9:hotfix5:*:*:*:*:*:*
cpe:2.3:o:ui:er-x-sfp_firmware:2.0.9:hotfix6:*:*:*:*:*:*

More vulnerabilities in Ui Er-x Firmware

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CVE-2023-2376 — Medium (CVSS 6.3): A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been classified as critical. Affected…

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