CVE-2026-86325: Moxa protocol gateways stack-based buffer overflow in account management

CVE-2026-86325 · Severity: info · Published 2026-10-02

Moxa protocol gateways used in industrial networks contain a stack-based buffer overflow vulnerability in their web management account interface. An authenticated user with read-only permissions can exploit this flaw by submitting a specially crafted account name to crash the device, read sensitive data like credentials from memory, or alter system behavior. This could lead to unauthorized access to industrial systems or operational disruption.

Vendors: Moxa.

Quick answers

Is CVE-2026-86325 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-86325 being exploited in the wild.
How severe is CVE-2026-86325?
Informational severity, published 2 October 2026.
Which products and versions are affected?
Moxa protocol gateways.
Is there a fix for CVE-2026-86325?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-86325 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-86325?
Check whether you run Moxa Protocol Gateways. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow (CWE-121) exists in the account management interface due to insufficient length validation of the `account_name` parameter in account management requests. An authenticated attacker with read-only web management access can overflow the internal stack buffer with a crafted account name, corrupting program execution flow. Successful exploitation allows information disclosure (credentials from memory), arbitrary memory modification, and denial of service.

Affected products

  • Moxa protocol gateways

Timeline

  • 2026-10-02: disclosed

References

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