CVE-2025-8832
Published: 11 August 2025
Summary
CVE-2025-8832 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Linksys Re6250 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 47.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Validates inputs like DMZIPAddress to prevent stack-based buffer overflows from improper restriction of operations within memory bounds.
Implements memory protections such as stack canaries and non-executable stacks to mitigate exploitation of stack-based buffer overflows.
Requires timely remediation of flaws like this unpatched buffer overflow through firmware updates to prevent remote code execution.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the web management interface (/goform/setDMZ) of public-facing Linksys Wi-Fi range extenders enables remote code execution via exploitation of a public-facing application.
NVD Description
A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function setDMZ of the file /goform/setDMZ. The manipulation of the argument DMZIPAddress leads to stack-based buffer overflow. The attack can…
more
be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2025-8832 is a stack-based buffer overflow vulnerability affecting the setDMZ function in the /goform/setDMZ file of Linksys Wi-Fi range extenders, including models RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 with firmware versions up to 20250801. The flaw stems from manipulation of the DMZIPAddress argument, mapped to CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow). Published on 2025-08-11, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
The vulnerability enables remote exploitation by attackers possessing low privileges, requiring no user interaction. Successful attacks can result in high confidentiality, integrity, and availability impacts, potentially allowing arbitrary code execution through the buffer overflow.
Advisories from VulDB and a GitHub repository detail the issue, including a publicly disclosed proof-of-concept exploit. The vendor was contacted early regarding disclosure but provided no response, and no patches or mitigations have been issued.
Details
- CWE(s)