CVE-2026-7834 EFM ipTIME NAS1dual misc_main.cgi get_csrf_whites stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the NAS web interface, potentially leading to arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7834?
CVE-2026-7834 is a critical memory corruption vulnerability in EFM ipTIME NAS1dual, published on 5 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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 and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-7834?
How do I fix CVE-2026-7834?
No fix has been published for CVE-2026-7834 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7834 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7834 exists.
Sources
Also known as GHSA-c384-mhv7-jvfr.