Linuxsecurity

Ubuntu 20.04 LTS libssh Vulnerabilities Lead to DDoS Risks

First seen 24 Feb 2026, 05:09 UTC • Ubuntu

•25.9

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Ubuntu 20.04 LTS and its derivatives are affected by vulnerabilities in libssh, specifically related to key exchange handling and path sanitization. These issues could allow remote attackers to crash libssh clients, resulting in a denial of service. The vulnerabilities are documented under CVE-2025-8277.

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Timeline

2025-09-09

CVE-2025-8277 published

2026-02-23

USN-8051-2 update released for affected Ubuntu versions

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Ubuntu 20.04 LTS libssh Vulnerabilities Lead to DDoS Risks

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