What is the CVSS score of CVE-2023-23912?

CVE-2023-23912 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2023-23912?

Yes, a public proof-of-concept exploit is available for CVE-2023-23912. Prioritise patching immediately. EPSS: 0.9%.

Usg Firmware CVE-2023-23912

HIGH

Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) (CWE-75)

2023-02-09 support@hackerone.com

Ubiquiti RCE Usg Firmware Usg Pro 4 Firmware Er 10X Firmware Er 12 Firmware Er 12P Firmware Er 4 Firmware Er 6P Firmware Er 8 Xg Firmware Er X Firmware Er X Sfp Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 09, 2023 - 20:15 nvd

HIGH 8.8

DescriptionNVD

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.

AnalysisAI

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. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-75. 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. Affected products include: Ui Usg Firmware, Ui Usg-Pro-4 Firmware, Ui Er-10X Firmware, Ui Er-12 Firmware, Ui Er-12P Firmware. Version information: Version 2.0.9.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.