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Improper link resolution in the VX800v v1.0 SFTP service allows authenticated adjacent attackers to use crafted symbolic links to access system files, resulting in high confidentiality impact and limited integrity risk.

CVE-2025-15541 is a vulnerability classified under CWE-59 (Improper Link Resolution Before File Access, also known as 'Link Following') affecting the TP-Link VX800v version 1.0. The flaw exists in the device's SFTP service, which improperly resolves symbolic links before accessing files. An attacker with authenticated access and network adjacency can craft symbolic links that cause the SFTP service to access unintended system files outside the intended directory scope. This leads primarily to a confidentiality breach, as sensitive system files may be read, while the integrity impact is limited since the vulnerability does not inherently allow file modification. The attack vector requires the attacker to have high privileges (authenticated user with elevated rights) and network adjacency, meaning the attacker must be on the same local network or VPN segment. No user interaction is required, and the vulnerability does not affect availability or authentication mechanisms beyond the need for high privileges. The CVSS 4.0 score of 6.9 reflects a medium severity, balancing the high confidentiality impact against the requirement for authentication and adjacency. No patches or known exploits are currently available, indicating the vulnerability is newly disclosed and unexploited in the wild. The vulnerability highlights a common security weakness in handling symbolic links, which can lead to unauthorized file access if not properly validated.

Detailed information about CVE-2025-15541: CWE-59 Improper Link Resolution Before File Access ('Link Following') in TP-Link Systems Inc. VX800v v1.0 affecting T

CVE-2025-15541: CWE-59 Improper Link Resolution Before File Access ('Link Following') in TP-Link Systems Inc. VX800v v1.0 - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-15541: CWE-59 Improper Link Resolution Before File Access ('Link Following') in TP-Link Systems Inc. VX800v v1.0

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