CVE-2023-37057
Published: 17 June 2024
Summary
CVE-2023-37057 is a critical-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Jlink AX1800 (inferred from references). Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 11.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-37057 is a remote code execution vulnerability in the JLINK Unionman Technology Co. Ltd Jlink AX1800 router running firmware version 1.0. The flaw resides in the device's authentication mechanism and is tracked under CWE-288; it carries a CVSS 3.1 score of 9.8, reflecting network-accessible attack vectors that require no credentials or user interaction.
An unauthenticated attacker with network reachability can exploit the weakness to execute arbitrary code on the router, resulting in full compromise of the device and any attached network resources. The attack can be launched remotely without prior authentication, enabling takeover of the router's control plane and potential lateral movement.
Public references include a GitHub repository containing exploit details along with vendor contact pages, but no official patch or mitigation guidance is referenced in the available sources. The EPSS score rose from lower values to a peak of 0.0723 on 2025-12-11 before receding to the current 0.0388, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-40977
Vulnerability details
An issue in JLINK Unionman Technology Co. Ltd Jlink AX1800 v.1.0 allows a remote attacker to execute arbitrary code via the router's authentication mechanism.
- 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.
Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.
Users can identify logons via alternate paths or channels by reviewing the previous logon time.
Adaptive requirements can apply across access paths, reducing the ability to bypass authentication via alternate channels or paths.
Centralized IdPs close alternate authentication paths that enable bypass.
Enforces authentication for non-organizational users, making it harder to bypass via alternate paths or channels.
Requires authentication to occur exclusively over the isolated trusted path, directly preventing bypass via alternate or untrusted channels.