{"id":"USN-8511-1","summary":"socat vulnerabilities","details":"It was discovered that socat incorrectly handled the SOCKS5 proxy server\nreply parser. A remote attacker could possibly use this issue to execute\narbitrary code. (CVE-2026-56123)\n\nIt was discovered that socat incorrectly handled a sample script. A local\nattacker could possibly use this issue to overwrite arbitrary files. This\nissue only affected Ubuntu 24.04 LTS. (CVE-2024-54661)","modified":"2026-07-06T20:44:29.593211784Z","published":"2026-07-06T12:37:17Z","related":["UBUNTU-CVE-2024-54661","UBUNTU-CVE-2026-56123"],"upstream":["CVE-2024-54661","CVE-2026-56123","UBUNTU-CVE-2024-54661","UBUNTU-CVE-2026-56123"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8511-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-54661"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-56123"}],"affected":[{"package":{"name":"socat","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/socat?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0.0-4ubuntu0.1"}]}],"versions":["1.7.4.4-2","1.8.0.0-4","1.8.0.0-4build1","1.8.0.0-4build2","1.8.0.0-4build3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.0.0-4ubuntu0.1","binary_name":"socat"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2024-54661","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-56123","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8511-1.json"}},{"package":{"name":"socat","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/socat?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.1.1-1ubuntu0.1"}]}],"versions":["1.8.0.3-1build1","1.8.1.0-1","1.8.1.0-2","1.8.1.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.1.1-1ubuntu0.1","binary_name":"socat"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-56123","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:26.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8511-1.json"}}],"schema_version":"1.7.5"}