CVE-2026-7069
Buffer Overflow in D-Link miniupnpd AddPortMapping Function
Publication date: 2026-04-27
Last updated on: 2026-04-30
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| dlink | dir-825_firmware | 3.00b32 |
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-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
This vulnerability affects D-Link DIR-825 devices up to firmware version 3.00b32 and involves a buffer overflow in the AddPortMapping function of miniupnpd. Since the affected products are no longer supported by the maintainer, no official patches are available.
Immediate mitigation steps include restricting access to the local network where the device resides, disabling UPnP services if possible, and isolating the vulnerable device from untrusted users or networks to prevent exploitation.
Can you explain this vulnerability to me?
This vulnerability is a security flaw found in the D-Link DIR-825 router up to firmware version 3.00b32. It affects the AddPortMapping function in the miniupnpd component, specifically in the file upnpsoap.c. The flaw occurs when the argument NewPortMappingDescription is manipulated, causing a buffer overflow. Exploiting this vulnerability requires access to the local network.
The vulnerability has been publicly disclosed and an exploit is available, which means attackers can use it to compromise affected devices. However, it only impacts products that are no longer supported by the manufacturer.
How can this vulnerability impact me? :
Exploiting this vulnerability can lead to a buffer overflow, which may allow an attacker within the local network to execute arbitrary code or cause a denial of service on the affected device. This can compromise the security and availability of the router, potentially allowing attackers to intercept or manipulate network traffic.