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USN-8101-1: Vim vulnerabilities

Rahul Hoysala discovered that Vim did not correctly handle certain tag resolutions. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-25749) It was discovered that Vim did not correctly handle processing certain specialKey commands. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-26269) Kim Dong Han discovered that Vim did not correctly handle opening certain URLs. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to execute arbitrary code. (CVE-2026-28417) Kim Dong Han discovered that Vim did not correctly handle parsing Emacs-style tag files. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-28418, CVE-2026-28419) Kim Dong Han discovered that Vim did not correctly handle processing maximum combining characters from Unicode supplementary planes. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-28420) Kim Dong Han discovered that Vim did not correctly handle swap file recovery. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-28421) Kim Dong Han discovered that Vim did not correctly handle rendering status lines. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-28422)

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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.