CVE-2026-4546 Flos Freeware Notepad2 TextShaping.dll uncontrolled search path
Local attackers can exploit an uncontrolled search path in TextShaping.dll to potentially execute arbitrary code, though exploitation is difficult.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4546?
CVE-2026-4546 is a high-severity vulnerability in Flos Freeware Notepad2, published on 22 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in Flos Freeware Notepad2 4.2.25. This impacts an unknown function in the library TextShaping.dll. Executing a manipulation can lead to uncontrolled search path. The attack is restricted to local execution. The attack requires a high level of complexity. The exploitability is said to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-4546?
It affects 1 product.
Products include Flos-Freeware Notepad2.
How do I fix CVE-2026-4546?
No fix has been published for CVE-2026-4546 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4546 being exploited?
There is no known exploitation of CVE-2026-4546 in the wild and no public exploit code.
Other vulnerabilities in Flos Freeware Notepad2
Sources
Also known as GHSA-c87r-r9gf-jq2q.