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Review reviewHigh

CVE-2023-2375

Ubiquiti EdgeRouter X, er-x firmware, er-x

A weakness has been identified in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. Impacted is an unknown function of the component Web Management Interface. Executing a manipulation of the argument src can lead to command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The presence of this vulnerability remains uncertain at this time. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

CVSS
7.3
EPSS
9.20%
94.8% percentile
CISA KEV
Not listed
Published
2023.04.29
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability9.20%
Technical severityCVSS 7.3

Vulnerability overview

A weakness has been identified in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. Impacted is an unknown function of the component Web Management Interface. Executing a manipulation of the argument src can lead to command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The presence of this vulnerability remains uncertain at this time. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

Affected product and versions

Product
Ubiquiti EdgeRouter X, er-x firmware, er-x
Affected versions
2.0.9-hotfix.0, 2.0.9-hotfix.1, 2.0.9-hotfix.2, 2.0.9-hotfix.3, 2.0.9-hotfix.4, 2.0.9-hotfix.5, 2.0.9-hotfix.6, < 2.0.9, 2.0.9
Fixed versions
2.0.9

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Ubiquiti EdgeRouter X, er-x firmware, er-x and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE
CWE-74, CWE-77
CVE-2023-2375 — Ubiquiti EdgeRouter X, er-x firmware, er-x | SECUFOCUS NOW