CVE-2026-1949 Incorrect calculation of buffer size on the stack in AS320T

Critical 9.8 Published Updated

Incorrect buffer size calculation in the web service handler allows attackers to cause stack-based memory corruption, potentially leading to code execution or denial of service.

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-2026-1949?

CVE-2026-1949 is a critical vulnerability in DeltaWW AS320T, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Delta Electronics AS320T has incorrect calculation of the buffer size on the stack in the GET/PUT request handler of the web service.

Weakness: CWE-131

Which versions are affected by CVE-2026-1949?

It affects 1 product.

Products include Deltaww As320t Firmware.

How do I fix CVE-2026-1949?

No fix has been published for CVE-2026-1949 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1949 being exploited?

There is no known exploitation of CVE-2026-1949 in the wild and no public exploit code.

Sources

Also known as GHSA-9rv5-7gpw-9g55.

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