A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version 4.4.56 and earlier with…

Description

A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version 4.4.56 and earlier with their DHCPv6 prefix delegation set to dhcpv6-stateless or dhcpv6-stateful, allows a malicious actor directly connected to the WAN interface of an affected device to create a remote code execution vulnerability.

Scores

EPSS (exploitation in 30 days)

0.96% · top 38% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• CWE-75: Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) (CWE-75) (opens in a new tab)All about CWE-75 and its CVEs
• CWE-94 Improper Control of Generation of Code ('Code Injection') (opens in a new tab)All about CWE-94 and its CVEs

Affected products

• Ubiquiti EdgeRouter(s) and USG(s)

  • affected EdgeRouter(s) Version 2.0.9-hotfix.6 or later and USG(s) to Version 4.4.57 or later

References (1)

• https://community.ui.com/releases/Security-Advisory-Bulletin-028-028/696e4e3b-718c-4da4-9a21-965a85633b5f (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2023-23912](https://trackcve.app/badge/CVE-2023-23912.svg)](https://trackcve.app/cve/CVE-2023-23912)

Record last updated 24 Mar 2025, 19:02 UTC.