CVE-2026-7834
Published: 05 May 2026
Description
A security vulnerability has been detected in EFM ipTIME NAS1dual 1.5.24. This issue affects the function get_csrf_whites of the file /cgi/advanced/misc_main.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly…
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and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.
Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.
Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.
Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.
Security SummaryAI
CVE-2026-7834 is a stack-based buffer overflow vulnerability in the EFM ipTIME NAS1dual network-attached storage device, specifically affecting version 1.5.24. The flaw resides in the get_csrf_whites function within the /cgi/advanced/misc_main.cgi script. Associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow), it has a CVSS v3.1 base score of 9.8, indicating critical severity.
The vulnerability enables remote exploitation without authentication or user interaction, as reflected in the CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Attackers can send crafted requests to trigger the buffer overflow, potentially achieving arbitrary code execution with full impact on confidentiality, integrity, and availability. An exploit has been publicly disclosed and may be actively used.
Advisories from VulDB detail the issue across entries like vuln/361113 and its CTI variant, with a submission tracked at submit/807787. A GitHub repository at glkfc/IoT-Vulnerability provides exploit documentation for the ipTIME NAS1dual. The vendor was notified early but has not responded or issued patches, leaving affected devices without official mitigations.
Details
- CWE(s)
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote unauthenticated stack buffer overflow in public-facing CGI script (/cgi/advanced/misc_main.cgi) directly enables arbitrary code execution on the exposed NAS device, mapping to exploitation of public-facing applications.