Buffer Overflow Vulnerability in EFM ipTIME NAS1dual by EFM Networks
CVE-2026-7834

9.3CRITICAL

Key Information:

Vendor

Efm

Status
Iptime Nas1dual
Vendor
CVE Published:
5 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7834?

A vulnerability in the EFM ipTIME NAS1dual 1.5.24 relates to the function get_csrf_whites within the file /cgi/advanced/misc_main.cgi. This flaw can be exploited via remote attacks, leading to stack-based buffer overflow, which can compromise system integrity. The issue was disclosed publicly, and despite early notice to the vendor, no response was received regarding the vulnerability.

Affected Version(s)

ipTIME NAS1dual 1.5.24

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7834 - Proof of Concept

References

https://vuldb.com/vuln/361113
vdb-entrytechnical-description
https://vuldb.com/vuln/361113/cti
signaturepermissions-required
https://vuldb.com/submit/807787
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

jfkk (VulDB User)
VulDB CNA Team
.