{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/64340?format=json","vulnerability_id":"VCID-v97m-zm6x-gfga","summary":"libssh: libssh: Denial of Service via out-of-bounds read in SFTP extension name handler","aliases":[{"alias":"CVE-2026-3731"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/928733?format=json","purl":"pkg:deb/debian/libssh@0.12.0-1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.12.0-1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/928712?format=json","purl":"pkg:deb/debian/libssh@0.12.0-3?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.12.0-3%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/1055252?format=json","purl":"pkg:deb/debian/libssh@0.12.0-3","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.12.0-3"}],"affected_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/928711?format=json","purl":"pkg:deb/debian/libssh@0.9.8-0%2Bdeb11u1?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.9.8-0%252Bdeb11u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/1049392?format=json","purl":"pkg:deb/debian/libssh@0.9.8-0%2Bdeb11u1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-12kz-zuqz-9qgy"},{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-72cq-k33t-zbhu"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-kek1-z4s4-tudn"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-t8nv-wfbj-13e5"},{"vulnerability":"VCID-u5ts-n3fz-nud9"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-wgkw-5cae-s3ej"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.9.8-0%252Bdeb11u1"},{"url":"http://public2.vulnerablecode.io/api/packages/1049393?format=json","purl":"pkg:deb/debian/libssh@0.10.6-0%2Bdeb12u2","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.10.6-0%252Bdeb12u2"},{"url":"http://public2.vulnerablecode.io/api/packages/928709?format=json","purl":"pkg:deb/debian/libssh@0.10.6-0%2Bdeb12u2?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.10.6-0%252Bdeb12u2%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/1055251?format=json","purl":"pkg:deb/debian/libssh@0.11.2-1%2Bdeb13u1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.11.2-1%252Bdeb13u1"},{"url":"http://public2.vulnerablecode.io/api/packages/928713?format=json","purl":"pkg:deb/debian/libssh@0.11.2-1%2Bdeb13u1?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-4qxq-4833-s7bd"},{"vulnerability":"VCID-8zdu-udyx-qkhu"},{"vulnerability":"VCID-hhun-qvy9-pydj"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"},{"vulnerability":"VCID-y3hu-uqgn-7uhr"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/libssh@0.11.2-1%252Bdeb13u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/1073043?format=json","purl":"pkg:rpm/redhat/libssh-main@0.12.0-1.1?arch=hum1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-9z1q-1hjj-4ucn"},{"vulnerability":"VCID-p6ex-bypb-n3fg"},{"vulnerability":"VCID-v97m-zm6x-gfga"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/libssh-main@0.12.0-1.1%3Farch=hum1"}],"references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-3731.json","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-3731.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-3731","reference_id":"","reference_type":"","scores":[{"value":"0.00099","scoring_system":"epss","scoring_elements":"0.27705","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00099","scoring_system":"epss","scoring_elements":"0.27743","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00099","scoring_system":"epss","scoring_elements":"0.27603","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00099","scoring_system":"epss","scoring_elements":"0.27534","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28575","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28631","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.2861","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28884","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29004","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29049","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29073","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29045","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29096","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29141","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.29135","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28654","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28554","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28549","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28701","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28771","published_at":"2026-04-26T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-3731"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3731","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3731"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1127693","reference_id":"1127693","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1127693"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445579","reference_id":"2445579","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445579"},{"reference_url":"https://gitlab.com/libssh/libssh-mirror/-/commit/855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60","reference_id":"855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://gitlab.com/libssh/libssh-mirror/-/commit/855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*","reference_id":"cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*"},{"reference_url":"https://vuldb.com/?ctiid.349709","reference_id":"?ctiid.349709","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://vuldb.com/?ctiid.349709"},{"reference_url":"https://vuldb.com/?id.349709","reference_id":"?id.349709","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://vuldb.com/?id.349709"},{"reference_url":"https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz","reference_id":"libssh-0.12.0.tar.xz","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz"},{"reference_url":"https://www.libssh.org/security/advisories/libssh-2026-sftp-extensions.txt","reference_id":"libssh-2026-sftp-extensions.txt","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://www.libssh.org/security/advisories/libssh-2026-sftp-extensions.txt"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:7067","reference_id":"RHSA-2026:7067","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:7067"},{"reference_url":"https://vuldb.com/?submit.767120","reference_id":"?submit.767120","reference_type":"","scores":[{"value":"5","scoring_system":"cvssv2","scoring_elements":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"},{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-11T19:50:26Z/"}],"url":"https://vuldb.com/?submit.767120"},{"reference_url":"https://usn.ubuntu.com/8093-1/","reference_id":"USN-8093-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/8093-1/"}],"weaknesses":[{"cwe_id":125,"name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer."},{"cwe_id":119,"name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer."}],"exploits":[],"severity_range_score":"5.0 - 6.9","exploitability":"0.5","weighted_severity":"6.2","risk_score":3.1,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-v97m-zm6x-gfga"}