CVE-2026-4170 Topsec TopACM HTTP Request nmc_sync.php os command injection
Remote attackers can execute arbitrary OS commands via the template_path argument in nmc_sync.php, requiring authentication.
- 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-2026-4170?
CVE-2026-4170 is a critical command injection vulnerability in Topsec TopACM, published on 15 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in Topsec TopACM 3.0. Affected by this vulnerability is an unknown functionality of the file /view/systemConfig/management/nmc_sync.php of the component HTTP Request Handler. Executing a manipulation of the argument template_path can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-4170?
How do I fix CVE-2026-4170?
No fix has been published for CVE-2026-4170 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-4170 being exploited?
There is no known exploitation of CVE-2026-4170 in the wild and no public exploit code.
Sources
Also known as GHSA-qq75-qq27-mw6p.