HIGH SEVERITY

CVE-2023-2374

Er X Firmware vulnerability

CVSS
7.2
EPSS
6.8%
EPSS pct
93th
Exploited
No known
A security flaw has been discovered in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This issue affects some unknown processing of the component Web Management Interface. Performing a manipulation of the argument ecn-down results in command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The existence of this vulnerability is still disputed at present. The vendor position is that post-authentication issues are not accepted as vulnerabilities.
Affected vendor
Ui
Affected product
Er X Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2023-04-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2023-2374

  • Confirm whether Ui Er X Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-2374.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-2374

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