CVE-2025-6373
BaseFortify
Publication date: 2025-06-21
Last updated on: 2025-06-25
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| dlink | dir-619l_firmware | 2.06b1 |
| dlink | dir-619l | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-119 | The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-6373 is a critical stack-based buffer overflow vulnerability in the D-Link DIR-619L router running firmware version 2.06B01. It exists in the formSetWizard1 function of the /goform/formWlSiteSurvey endpoint. The vulnerability arises from improper handling of the argument 'curTime', which an attacker can manipulate by supplying an excessively long value. This causes a stack overflow, potentially allowing the attacker to crash the device or execute arbitrary code remotely without authentication. [1, 2]
How can this vulnerability impact me? :
This vulnerability can severely impact the confidentiality, integrity, and availability of the affected D-Link DIR-619L router. An attacker can remotely exploit the flaw to crash the device or execute arbitrary code, potentially taking full control of the router. This could lead to unauthorized access, disruption of network services, and compromise of data passing through the device. Since the device is no longer supported and no mitigations exist, the risk is high. [2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring network traffic for requests to the /goform/formWlSiteSurvey endpoint with unusually long or malformed curTime parameters, which indicate attempts to exploit the stack-based buffer overflow. Specific commands depend on your network monitoring tools, but for example, using tcpdump or Wireshark to filter HTTP POST requests to /goform/formWlSiteSurvey and inspecting the curTime parameter length can help. Example tcpdump command: tcpdump -A -s 0 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | grep '/goform/formWlSiteSurvey'. Additionally, IDS/IPS systems can be configured to alert on unusually long curTime parameter values in HTTP requests. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include discontinuing use of the affected D-Link DIR-619L router running firmware version 2.06B01, as no known countermeasures or patches exist. Replace the vulnerable device with a supported alternative product. Additionally, restrict network access to the device, especially blocking remote HTTP access to the /goform/formWlSiteSurvey endpoint to prevent exploitation. Implement network-level protections such as firewalls or intrusion prevention systems to detect and block exploit attempts targeting the curTime parameter. [2]