{"schemaVersion":3,"id":"SUSE-SU-2026:23245-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for libssh2_org\n\nThis update for libssh2_org fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2025-15661: out-of-bounds heap read vulnerability in the `sftp_symlink()` function in `src/sftp.c` (bsc#1268546).\n- CVE-2026-7598: integer overflow in function `userauth_password` of file `src/userauth.c` (bsc#1263890).\n- CVE-2026-58050: heap buffer overflow due to missing bounds check in attribute count of publickey-subsystem response\n  (bsc#1269568).\n- CVE-2026-58051: uninitialized pointer freed when malformed responses are sent by an SSH server (bsc#1269567).\n- CVE-2026-66032: arbitrary code execution via double-free in SFTP session (bsc#1272737).\n- CVE-2026-66033: denial of service via integer underflow in AES-GCM cipher negotiation (bsc#1272736).\n- CVE-2026-66034: information disclosure and potential arbitrary code execution via heap out-of-bounds read\n  (bsc#1272735).\n- CVE-2026-66035: arbitrary code execution via heap buffer overflow during SSH negotiation (bsc#1272734).\n\nOther updates and bugfixes:\n\n- Fix an issue with Encrypt-then-MAC family (bsc#1221622).\n  * Test the ETM feature in the remote end's configuration when receiving data. Upstream issue: #1331.\n- Always add the KEX pseudo-methods `ext-info-c` and `kex-strict-c-v00@openssh.com` when configuring custom method list\n  (bsc#1218971).\n  * The strict-kex extension is announced in the list of available KEX methods. However, when the default KEX method\n    list is modified or replaced, the extension is not added back automatically.","dates":{"published":"2026-08-19T10:47:36.000Z","modified":"2026-08-27T18:23:11.283Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"suse","product":"libssh2_org&distro=SUSE Linux Micro 6.0","name":"libssh2_org","label":"libssh2_org&distro=SUSE Linux Micro 6.0","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/libssh2_org&distro=SUSE Linux Micro 6.0","purlType":"rpm","versions":[{"text":"< 1.11.0-4.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.11.0-4.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623245-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-202623245-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1218971","label":"bugzilla.suse.com/1218971","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1221622","label":"bugzilla.suse.com/1221622","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1263890","label":"bugzilla.suse.com/1263890","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1268546","label":"bugzilla.suse.com/1268546","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1269567","label":"bugzilla.suse.com/1269567","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1269568","label":"bugzilla.suse.com/1269568","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272734","label":"bugzilla.suse.com/1272734","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272735","label":"bugzilla.suse.com/1272735","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272736","label":"bugzilla.suse.com/1272736","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1272737","label":"bugzilla.suse.com/1272737","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2025-15661","label":"www.suse.com/security/cve/CVE-2025-15661","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58050","label":"www.suse.com/security/cve/CVE-2026-58050","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58051","label":"www.suse.com/security/cve/CVE-2026-58051","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66032","label":"www.suse.com/security/cve/CVE-2026-66032","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66033","label":"www.suse.com/security/cve/CVE-2026-66033","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66034","label":"www.suse.com/security/cve/CVE-2026-66034","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-66035","label":"www.suse.com/security/cve/CVE-2026-66035","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-7598","label":"www.suse.com/security/cve/CVE-2026-7598","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2025-15661","CVE-2026-58050","CVE-2026-58051","CVE-2026-66032","CVE-2026-66033","CVE-2026-66034","CVE-2026-66035","CVE-2026-7598"],"downstream":[],"duplicates":[],"related":["CVE-2025-15661","CVE-2026-58050","CVE-2026-58051","CVE-2026-66032","CVE-2026-66033","CVE-2026-66034","CVE-2026-66035","CVE-2026-7598"]},"timeline":[{"kind":"published","date":"2026-08-19T10:47:36.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-27T18:23:11.283Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T02:31:34.411Z","stale":false,"partial":false}}