CVE-2025-8826
BaseFortify
Publication date: 2025-08-11
Last updated on: 2025-09-04
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linksys | re6250_firmware | 1.0.04.001 |
| linksys | re6250 | * |
| linksys | re6300_firmware | 1.2.07.001 |
| linksys | re6300 | * |
| linksys | re6350_firmware | 1.0.04.001 |
| linksys | re6350 | * |
| linksys | re7000_firmware | 1.1.05.003 |
| linksys | re7000 | * |
| linksys | re9000_firmware | 1.0.04.002 |
| linksys | re9000 | * |
| linksys | re6500_firmware | 1.0.013.001 |
| linksys | re6500 | * |
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-2025-8826 is a stack-based buffer overflow vulnerability in multiple Linksys range extender models. It occurs in the function um_rp_autochannel within the /goform/RP_setBasicAuto endpoint, where the parameters apcli_AuthMode_2G and apcli_AuthMode_5G are improperly handled without proper length validation. An attacker can remotely send crafted input to these parameters that exceed the expected size, causing a stack overflow. This can lead to crashing the device or potentially executing arbitrary code remotely. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by compromising the confidentiality, integrity, and availability of the affected Linksys devices. An attacker can remotely exploit the buffer overflow to crash the device or execute arbitrary code, potentially taking control of the device or disrupting its normal operation. There are no known patches or mitigations currently available, so affected devices remain at risk. [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 suspicious requests targeting the /goform/RP_setBasicAuto endpoint with unusually long or malformed parameters apcli_AuthMode_2G or apcli_AuthMode_5G, which may indicate attempts to exploit the stack-based buffer overflow. Since a public proof-of-concept exploit is available, IDS/IPS signatures could be used if updated. Specific commands are not provided in the resources. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include discontinuing use of affected Linksys range extender models (RE6250, RE6300, RE6350, RE6500, RE7000, RE9000) with firmware up to 20250801, as no patches or vendor mitigations are available. Consider replacing these devices with alternative products. Additionally, restrict remote access to these devices and monitor for exploitation attempts. [2]