CVE-2026-1951 No checking of the length of the buffer with the directory name in AS320T
A buffer overflow in Delta AS320T PLCs allows attackers to execute arbitrary code or cause denial of service via crafted directory names.
- 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-2026-1951?
CVE-2026-1951 is a critical memory corruption 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 no checking of the length of the buffer with the directory name
vulnerability.
Weakness: CWE-121
Which versions are affected by CVE-2026-1951?
It affects 1 product.
Products include Deltaww As320t Firmware.
How do I fix CVE-2026-1951?
No fix has been published for CVE-2026-1951 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-1951 being exploited?
There is no known exploitation of CVE-2026-1951 in the wild and no public exploit code.
Other vulnerabilities in DeltaWW AS320T
Sources
Also known as GHSA-cc2v-9v42-3c8q.