CVE-2025-4878

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-4878", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2025-05-16T22:28:46.782Z", "datePublished": "2025-07-22T14:17:03.122Z", "dateUpdated": "2026-11-06T17:43:53.938Z"}, "containers": {"cna": {"title": "Libssh: use of uninitialized variable in privatekey_from_file()", "metrics": [{"other": {"content": {"value": "Low", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.6, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption."}], "affected": [{"versions": [{"status": "affected", "version": "0", "lessThan": "0.11.2", "versionType": "semver"}], "packageName": "libssh", "collectionURL": "https://www.libssh.org/", "defaultStatus": "unaffected"}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh", "defaultStatus": "affected", "versions": [{"version": "0:0.10.4-18.el9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh", "defaultStatus": "affected", "versions": [{"version": "0:0.10.4-18.el9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:enterprise_linux:10"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh2", "defaultStatus": "unknown", "cpes": ["cpe:/o:redhat:rhel_els:6"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh2", "defaultStatus": "unknown", "cpes": ["cpe:/o:redhat:rhel_els:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libssh", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "openshift/ose-rhel-coreos-8", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift:4"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "openshift/ose-rhel-coreos-9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift:4"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:18683", "name": "RHSA-2026:18683", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2025-4878", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376184", "name": "RHBZ#2376184", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1"}, {"url": "https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb"}, {"url": "https://www.libssh.org/security/advisories/CVE-2025-4878.txt"}], "datePublic": "2025-06-24T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "Use After Free", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-416: Use After Free", "timeline": [{"lang": "en", "time": "2025-07-03T17:42:21.515Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-06-24T00:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-06T17:43:53.938Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-07-22T14:34:47.719442Z", "id": "CVE-2025-4878", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-22T14:35:00.989Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-4878", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-07-22T14:34:47.719442Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-22T14:34:52.768Z"}}], "cna": {"title": "Libssh: use of uninitialized variable in privatekey_from_file()", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Low", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.6, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"versions": [{"status": "affected", "version": "0", "lessThan": "0.11.2", "versionType": "semver"}], "packageName": "libssh", "collectionURL": "https://www.libssh.org/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:0.10.4-18.el9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libssh", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:0.10.4-18.el9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libssh", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "libssh", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_els:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "libssh2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/o:redhat:rhel_els:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "libssh2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "libssh", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "packageName": "openshift/ose-rhel-coreos-8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "packageName": "openshift/ose-rhel-coreos-9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2025-07-03T17:42:21.515Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-06-24T00:00:00.000Z", "value": "Made public."}], "datePublic": "2025-06-24T00:00:00.000Z", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:18683", "name": "RHSA-2026:18683", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2025-4878", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376184", "name": "RHBZ#2376184", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1"}, {"url": "https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb"}, {"url": "https://www.libssh.org/security/advisories/CVE-2025-4878.txt"}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "Use After Free"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-06T17:43:53.938Z"}, "x_redhatCweChain": "CWE-416: Use After Free"}}, "cveMetadata": {"cveId": "CVE-2025-4878", "state": "PUBLISHED", "dateUpdated": "2026-11-06T17:43:53.938Z", "dateReserved": "2025-05-16T22:28:46.782Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2025-07-22T14:17:03.122Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://www.libssh.org/", "defaultStatus": "unaffected", "packageName": "libssh", "versions": [{"lessThan": "0.11.2", "status": "affected", "version": "0", "versionType": "semver"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"], "defaultStatus": "affected", "packageName": "libssh", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:0.10.4-18.el9", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/o:redhat:enterprise_linux:9::baseos"], "defaultStatus": "affected", "packageName": "libssh", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:0.10.4-18.el9", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "libssh", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:rhel_els:6"], "defaultStatus": "unknown", "packageName": "libssh2", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:rhel_els:7"], "defaultStatus": "unknown", "packageName": "libssh2", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:8"], "defaultStatus": "affected", "packageName": "libssh", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift:4"], "defaultStatus": "affected", "packageName": "openshift/ose-rhel-coreos-8", "product": "Red Hat OpenShift Container Platform 4", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift:4"], "defaultStatus": "affected", "packageName": "openshift/ose-rhel-coreos-9", "product": "Red Hat OpenShift Container Platform 4", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en libssh que permite la existencia de una variable no inicializada en la funci\u00f3n privatekey_from_file() bajo ciertas condiciones. Esta falla puede activarse si el archivo especificado por el nombre de archivo no existe y puede provocar posibles errores de firma o corrupci\u00f3n del mont\u00f3n."}], "id": "CVE-2025-4878", "lastModified": "2026-11-06T18:17:21.063", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.6, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 2.5, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-4878", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-07-22T14:34:47.719442Z", "version": "2.0.3"}}]}, "published": "2025-07-22T15:15:36.307", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:18683"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2025-4878"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376184"}, {"source": "secalert@redhat.com", "url": "https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1"}, {"source": "secalert@redhat.com", "url": "https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb"}, {"source": "secalert@redhat.com", "url": "https://www.libssh.org/security/advisories/CVE-2025-4878.txt"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"bugzilla": {"description": "libssh: Use of uninitialized variable in privatekey_from_file()", "id": "2376184", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376184"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.6", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-416", "details": ["No description is available for this CVE."], "name": "CVE-2025-4878", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "libssh", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libssh2", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libssh2", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libssh", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libssh", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2025-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-4878\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-4878"], "threat_severity": "Low"}

{}