Threats Tagged 'ubuntu-cve-2026-66035'
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Threats Tagged 'ubuntu-cve-2026-66035'
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A heap buffer overflow vulnerability (CVE-2026-66035) exists in libssh2, affecting Red Hat Hardened Images RPMs. A malicious SSH server can exploit this flaw during the Encrypt-then-MAC cipher negotiation to corrupt heap memory on the client side before authentication. This may lead to arbitrary code execution on the client. Exploitation requires the client to connect to a malicious server, limiting the attack surface. Red Hat has issued an advisory describing the issue and recommending restricting SSH client connections to trusted servers. No official fix has been released yet for the affected Red Hat Hardened Images packages. Join the discussion | GCVE Database | 07/27/2026, 19:37:50 UTC Added: 08/02/2026, 21:27:09 UTC |
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