Is CVE-2023-1456 actively exploited?

No active exploitation of CVE-2023-1456 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-1456 be exploited remotely?

Yes. CVE-2023-1456 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-1456?

CVE-2023-1456 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-1456

CWE-77Published: March 25, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability, which was classified as critical, has been found in Ubiquiti EdgeRouter X 2.0.9-hotfix.6. This issue affects some unknown processing of the component NAT Configuration Handler. The manipulation leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The identifier VDB-223301 was assigned to this vulnerability. NOTE: The vendor position is that post-authentication issues are not accepted as vulnerabilities.

NVD Source

Technical Analysis

CVE-2023-1456 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.