- What: Vulnerability in ncurses allowing denial-of-service attacks
- Impact: Applications using ncurses may crash when opening malicious files
Ubuntu Security Notices USN-8709-1 USN-8709-1: ncurses vulnerability Publication date 1 September 2026 Overview ncurses could be made to crash if it opened a specially crafted file. Releases 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS 14.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages ncurses - shared libraries for terminal handling Details It was discovered that ncurses incorrectly handled specially crafted terminfo database entries. A local attacker could possibly use this issue to cause applications using ncurses to crash, resulting in a denial of service. It was discovered that ncurses incorrectly handled specially crafted terminfo database entries. A local attacker could possibly use this issue to cause applications using ncurses to crash, resulting in a denial of service. Update instructions In general, a standard system update will make all the necessary changes. Learn more about how to get the fixes. The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 24.04 LTS noble libncurses6 – 6.4+20240113-1ubuntu2.2 libtinfo6 – 6.4+20240113-1ubuntu2.2 ncurses-bin – 6.4+20240113-1ubuntu2.2 22.04 LTS jammy libncurses5 – 6.3-2ubuntu0.3 libncurses6 – 6.3-2ubuntu0.3 libtinfo5 – 6.3-2ubuntu0.3 libtinfo6 – 6.3-2ubuntu0.3 ncurses-bin – 6.3-2ubuntu0.3 20.04 LTS focal libncurses5 – 6.2-0ubuntu2.1+esm2 Ubuntu Pro Fix available with Ubuntu Pro . libncurses6 – 6.2-0ubuntu2.1+esm2 Ubuntu Pro Fix available with Ubuntu Pro . libtinfo5 – 6.2-0ubuntu2.1+esm2 Ubuntu Pro Fix available with Ubuntu Pro . libtinfo6 – 6.2-0ubuntu2.1+esm2 Ubuntu Pro Fix available with Ubuntu Pro . ncurses-bin – 6.2-0ubuntu2.1+esm2 Ubuntu Pro Fix available with Ubuntu Pro . 18.04 LTS bionic libncurses5 – 6.1-1ubuntu1.18.04.1+esm4 Ubuntu Pro Fix available with Ubuntu Pro . libtinfo5 – 6.1-1ubuntu1.18.04.1+esm4 Ubuntu Pro Fix available with Ubuntu Pro . ncurses-bin – 6.1-1ubuntu1.18.04.1+esm4 Ubuntu Pro Fix available with Ubuntu Pro . 16.04 LTS xenial libncurses5 – 6.0+20160213-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. libtinfo5 – 6.0+20160213-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. ncurses-bin – 6.0+20160213-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. 14.04 LTS trusty libncurses5 – 5.9+20140118-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. libtinfo5 – 5.9+20140118-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. ncurses-bin – 5.9+20140118-1ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via Legacy Support add-on. Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2025-6141 CVE-2025-6141