Common Weakness Enumeration
CWE-59
AllowedImproper Link Resolution Before File Access ('Link Following')
Abstraction: Base · Status: Draft
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
1984 vulnerabilities reference this CWE, most recent first.
CVE-2026-2808 (GCVE-0-2026-2808)
Vulnerability from cvelistv5 – Published: 2026-03-11 23:08 – Updated: 2026-04-17 17:57
VLAI
EPSS
VEX
Title
Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider
Summary
HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read when configured with Kubernetes authentication. This vulnerability, CVE-2026-2808, is fixed in Consul 1.18.21, 1.21.11 and 1.22.5.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.5
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.5
(semver)
|
Credits
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CVE-2026-2627 (GCVE-0-2026-2627)
Vulnerability from cvelistv5 – Published: 2026-02-17 21:32 – Updated: 2026-02-23 10:16
VLAI
EPSS
VEX
Title
Softland FBackup Backup/Restore HID.dll link following
Summary
A security flaw has been discovered in Softland FBackup up to 9.9. This impacts an unknown function in the library C:\Program Files\Common Files\microsoft shared\ink\HID.dll of the component Backup/Restore. The manipulation results in link following. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Link Following
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.346279 | vdb-entry |
| https://vuldb.com/?ctiid.346279 | signaturepermissions-required |
| https://vuldb.com/?submit.752050 | third-party-advisory |
| https://github.com/thezdi/PoC/tree/main/FilesystemEoPs | exploit |
Impacted products
Credits
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CVE-2026-2490 (GCVE-0-2026-2490)
Vulnerability from cvelistv5 – Published: 2026-02-20 22:24 – Updated: 2026-02-24 15:16
VLAI
EPSS
VEX
Title
RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability
Summary
RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of RustDesk Client for Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Transfer File feature. By uploading a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-27909.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| https://github.com/rustdesk/rustdesk/pull/13736 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RustDesk | Client for Windows |
Affected:
1.4.1
|
Date Public
2026-02-19 14:20
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CVE-2026-0827 (GCVE-0-2026-0827)
Vulnerability from cvelistv5 – Published: 2026-04-15 12:27 – Updated: 2026-04-15 13:48
VLAI
EPSS
VEX
Summary
During an internal security assessment, a potential vulnerability was discovered in Lenovo Diagnostics and the HardwareScanAddin used in Lenovo Vantage that, during installation or when using hardware scan, could allow a local authenticated user to perform an arbitrary file write with elevated privileges.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Lenovo | Diagnostics |
Affected:
0 , < 5.26.0
(custom)
|
|
| Lenovo | Vantage |
Affected:
0 , < 4.7.1.4
(custom)
|
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CVE-2025-71212 (GCVE-0-2025-71212)
Vulnerability from cvelistv5 – Published: 2026-05-21 13:02 – Updated: 2026-05-21 14:09
VLAI
EPSS
VEX
Summary
A link following vulnerability in the Trend Micro Apex One scan engine could allow a local attacker to escalate privileges on affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Improper Link Resolution Before File Access
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Trend Micro, Inc. | TrendAI Apex One |
Affected:
2019 (14.0) , < 14.0.0.14136
(semver)
cpe:2.3:a:trendmicro:apexone_op:14.0.0.14136:*:*:*:*:*:*:* |
|
| Trend Micro, Inc. | TrendAI Apex One as a Service |
Affected:
SaaS , < 14.0.20315
(semver)
cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20315:*:*:*:*:*:*:* |
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CVE-2025-68279 (GCVE-0-2025-68279)
Vulnerability from cvelistv5 – Published: 2025-12-18 22:59 – Updated: 2025-12-19 15:02
VLAI
EPSS
VEX
Title
Weblate has an arbitrary file read via symbolic links
Summary
Weblate is a web based localization tool. In versions prior to 5.15.1, it was possible to read arbitrary files from the server file system using crafted symbolic links in the repository. Version 5.15.1 fixes the issue.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/WeblateOrg/weblate/security/ad… | x_refsource_CONFIRM |
| https://github.com/WeblateOrg/weblate/pull/17331 | x_refsource_MISC |
| https://github.com/WeblateOrg/weblate/pull/17356 | x_refsource_MISC |
| https://github.com/WeblateOrg/weblate/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WeblateOrg | weblate |
Affected:
< 5.15.1
|
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CVE-2025-68146 (GCVE-0-2025-68146)
Vulnerability from cvelistv5 – Published: 2025-12-16 18:10 – Updated: 2025-12-17 18:51
VLAI
EPSS
VEX
Title
filelock has TOCTOU race condition that allows symlink attacks during lock file creation
Summary
filelock is a platform-independent file lock for Python. In versions prior to 3.20.1, a Time-of-Check-Time-of-Use (TOCTOU) race condition allows local attackers to corrupt or truncate arbitrary user files through symlink attacks. The vulnerability exists in both Unix and Windows lock file creation where filelock checks if a file exists before opening it with O_TRUNC. An attacker can create a symlink pointing to a victim file in the time gap between the check and open, causing os.open() to follow the symlink and truncate the target file. All users of filelock on Unix, Linux, macOS, and Windows systems are impacted. The vulnerability cascades to dependent libraries. The attack requires local filesystem access and ability to create symlinks (standard user permissions on Unix; Developer Mode on Windows 10+). Exploitation succeeds within 1-3 attempts when lock file paths are predictable. The issue is fixed in version 3.20.1. If immediate upgrade is not possible, use SoftFileLock instead of UnixFileLock/WindowsFileLock (note: different locking semantics, may not be suitable for all use cases); ensure lock file directories have restrictive permissions (chmod 0700) to prevent untrusted users from creating symlinks; and/or monitor lock file directories for suspicious symlinks before running trusted applications. These workarounds provide only partial mitigation. The race condition remains exploitable. Upgrading to version 3.20.1 is strongly recommended.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/tox-dev/filelock/security/advi… | x_refsource_CONFIRM |
| https://github.com/tox-dev/filelock/pull/461 | x_refsource_MISC |
| https://github.com/tox-dev/filelock/commit/4724d7… | x_refsource_MISC |
| https://github.com/tox-dev/filelock/releases/tag/3.20.1 | x_refsource_MISC |
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CVE-2025-66277 (GCVE-0-2025-66277)
Vulnerability from cvelistv5 – Published: 2026-02-11 12:15 – Updated: 2026-02-26 14:44
VLAI
EPSS
VEX
Title
QTS, QuTS hero
Summary
A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations.
We have already fixed the vulnerability in the following versions:
QTS 5.2.8.3350 build 20251216 and later
QuTS hero h5.3.2.3354 build 20251225 and later
QuTS hero h5.2.8.3350 build 20251216 and later
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.8.3350 build 20251216
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.3.x , < h5.3.2.3354 build 20251225
(custom)
Affected: h5.2.x , < h5.2.8.3350 build 20251216 (custom) |
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CVE-2025-64437 (GCVE-0-2025-64437)
Vulnerability from cvelistv5 – Published: 2025-11-07 23:04 – Updated: 2025-11-10 18:50
VLAI
EPSS
VEX
Title
KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes
Summary
KubeVirt is a virtual machine management add-on for Kubernetes. In versions before 1.5.3 and 1.6.1, the virt-handler does not verify whether the launcher-sock is a symlink or a regular file. This oversight can be exploited, for example, to change the ownership of arbitrary files on the host node to the unprivileged user with UID 107 (the same user used by virt-launcher) thus, compromising the CIA (Confidentiality, Integrity and Availability) of data on the host. To successfully exploit this vulnerability, an attacker should be in control of the file system of the virt-launcher pod. This vulnerability is fixed in 1.5.3 and 1.6.1.
Severity
5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kubevirt/kubevirt/security/adv… | x_refsource_CONFIRM |
| https://github.com/kubevirt/kubevirt/commit/3ce9f… | x_refsource_MISC |
| https://github.com/kubevirt/kubevirt/commit/8644d… | x_refsource_MISC |
| https://github.com/kubevirt/kubevirt/commit/f59ca… | x_refsource_MISC |
Impacted products
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CVE-2025-62676 (GCVE-0-2025-62676)
Vulnerability from cvelistv5 – Published: 2026-02-10 15:39 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Summary
An Improper Link Resolution Before File Access ('Link Following') vulnerability [CWE-59] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.4, FortiClientWindows 7.2.0 through 7.2.12, FortiClientWindows 7.0 all versions may allow a local low-privilege attacker to perform an arbitrary file write with elevated permissions via crafted named pipe messages.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-59 - Escalation of privilege
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortinet | FortiClientWindows |
Affected:
7.4.0 , ≤ 7.4.4
(semver)
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Mitigation MIT-48.1
Architecture and Design
Strategy: Separation of Privilege
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
CAPEC-132: Symlink Attack
An adversary positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name.
CAPEC-17: Using Malicious Files
An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.