CVE-2026-6643
A stack-based buffer overflow vulnerability in the VPN Clients on the ADM
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.6EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
20 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM. The issue stems from the use of unbounded sscanf() and passing user-controlled data directly to printf(). Due to the lack of PIE and Stack Canary protections, an authenticated remote attacker can exploit these to execute arbitrary code as the web server user.
Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
Affected products
ASUSTOR Inc. · ADM