CVE-2026-38426 Memory corruption in n/a
A remote attacker can execute arbitrary code on Tasmota devices via a buffer overflow in the scripter component.
- 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-2026-38426?
CVE-2026-38426 is a high-severity memory corruption vulnerability in n/a, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv_10_scripter.ino, fetch_jpg(), jpg_task.boundary[40], strcpy() function.
Weakness: CWE-120
Which versions are affected by CVE-2026-38426?
How do I fix CVE-2026-38426?
No fix has been published for CVE-2026-38426 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-2026-38426 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38426 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-rxch-658p-46rq.