CVE-2023-22919
Published: 01 May 2023
Summary
CVE-2023-22919 is a high-severity OS Command Injection (CWE-78) vulnerability in Zyxel Nbg6604 Firmware. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability is a post-authentication command injection flaw, tracked as CVE-2023-22919 and assigned CWE-78, that affects the Zyxel NBG6604 home router running firmware version V1.01(ABIR.0)C0. An authenticated user can submit a crafted HTTP request that results in execution of arbitrary operating-system commands on the device.
An attacker who already possesses valid credentials can exploit the issue over the network with low attack complexity and no user interaction required. Successful exploitation grants the ability to run OS commands remotely, producing high impact on the confidentiality, integrity, and availability of the affected router.
The vendor has published a security advisory that addresses the post-authentication command-injection vulnerability in the NBG6604 firmware. The EPSS score has remained flat at 0.0622 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-27021
Vulnerability details
The post-authentication command injection vulnerability in the Zyxel NBG6604 firmware version V1.01(ABIR.0)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.