How severe is CVE-2023-2378?

CVE-2023-2378 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-2023-2378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2378?

CVE-2023-2378 primarily affects Ui Er-x Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2378?

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

When was CVE-2023-2378 published?

CVE-2023-2378 was published on 2023-04-28 and last updated on 2026-06-17.

CVE-2023-2378

CVE-2023-2378 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: 4% (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 was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been rated as critical. Affected by this issue is some unknown functionality of the component Web Management Interface. The manipulation of the argument suffix-rate-up leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-227654 is the identifier assigned to this vulnerability.

Frequently asked questions

What is CVE-2023-2378?: A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been rated as critical. Affected by this issue is some unknown functionality of the component Web Management Interface. The manipulation of the argument suffix-rate-up leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-227654 is the identifier assigned to this vulnerability.
How severe is CVE-2023-2378?: CVE-2023-2378 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-2023-2378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2378?: CVE-2023-2378 primarily affects Ui Er-x Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-2378 published?: CVE-2023-2378 was published on 2023-04-28 and last updated on 2026-06-17.

References

Affected products (14)

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:hotfix3:*:*:*:*:*:*
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

CVE-2023-23912 — High (CVSS 8.8): A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version…
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CVE-2023-2377 — Medium (CVSS 6.3): A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been declared as critical. Affected by…
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…
CVE-2023-2375 — Medium (CVSS 6.3): A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6 and classified as critical. This issue affects…

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