CVE-2018-25271 Textpad 8.1.2 Denial of Service via Run Command
Local attackers can crash Textpad by pasting a long string into the Run command field, causing a buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-25271?
CVE-2018-25271 is a medium-severity denial of service vulnerability in Textpad, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Textpad 8.1.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long buffer string through the Run command interface. Attackers can paste a 5000-byte payload into the Command field via Tools > Run to trigger a buffer overflow that crashes the application.
Weakness: CWE-787
Which versions are affected by CVE-2018-25271?
It affects 1 product.
Products include Helios Textpad.
How do I fix CVE-2018-25271?
No fix has been published for CVE-2018-25271 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-25271 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25271 exists.
Sources
Also known as GHSA-ch4m-p87j-7gwq.