https://seclists.org/oss-sec/2026/q2/1011: libssh2: CVE-2026-55200 (critical), CVE-2025-15661 (high), CVE-2026-55199 (high)
Published Jun 23, 2026
·Updated
Affected Software
1 affected component
libssh2 libssh2
Frequently Asked Questions
1
What is the severity of CVE-2026-55200?
CVE-2026-55200 has a critical severity with a rating of 9.2.
2
How do I fix CVE-2026-55200?
To fix CVE-2026-55200, update to the latest version of libssh2 that addresses this vulnerability.
3
What kind of vulnerability is CVE-2026-55200?
CVE-2026-55200 is categorized as a critical vulnerability affecting the libssh2 library.
4
Are there known exploits for CVE-2026-55200?
Yes, proof of concept exploits for CVE-2026-55200 have been documented.
5
What are the potential impacts of CVE-2026-55200?
Exploitation of CVE-2026-55200 could lead to significant security breaches within systems using libssh2.