CVE-2026-96540 Missing authorization in Network Security Manager (NSM)
Remote authenticated attackers can exploit improper access control in export settings to obtain sensitive information and escalate privileges to administrator.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96540?
CVE-2026-96540 is a high-severity missing authorization vulnerability in SonicWall Network Security Manager (NSM), published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An improper access control vulnerability has been identified in the SonicWall Network Security Manager (NSM) on-prem in export settings, potentially allowing a remote authenticated attacker to obtain sensitive information. This may allow the attacker to escalate privileges to an administrator or to intercept communications of other users of the NSM instance.
Weakness: CWE-863
Which versions are affected by CVE-2026-96540?
How do I fix CVE-2026-96540?
No fix has been published for CVE-2026-96540 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-96540 being exploited?
There is no known exploitation of CVE-2026-96540 in the wild and no public exploit code.
Sources
Also known as GHSA-3w7w-j3fw-8r8g.