Vulnerability · Published May 5, 2026 · Assigned by VulDB

CVE-2026-7834EFM ipTIME NAS1dual misc_main.cgi get_csrf_whites stack-based overflow

Critical 9.8

In plain English

A critical-severity stack buffer overflow in ipTIME NAS1dual from EFM. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.6%top 49.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
EFM	ipTIME NAS1dual	1.5.24

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-361113 | EFM ipTIME NAS1dual misc_main.cgi get_csrf_whites stack-based overflow vdb-entry, technical-description
VDB-361113 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #807787 | iptime nas1dual 1.5.24 Stack Overflow third-party-advisory
https://github.com/glkfc/IoT-Vulnerability/blob/main/iptime/nas1dual/iptime2_en.md exploit