{"cve":"CVE-2019-17498","nvd":{"published":"2019-10-21T22:15:10.523","modified":"2026-10-14T07:16:48.780","status":"Modified","description":"In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","score":8.1},"cwes":["CWE-190"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html","http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html","https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/","https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498","https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480"],"products":["debian:debian_linux","fedoraproject:fedora","libssh2:libssh2","netapp:active_iq_unified_manager","netapp:bootstrap_os","netapp:element_software","netapp:hci_management_node","netapp:ontap_select_deploy_administration_utility","netapp:solidfire","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-17498","score":0.03807,"percentile":0.89947,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}