{"id":"CVE-2026-95508","aliases":[],"cve":{"records":[{"id":"CVE-2026-95508","source":"redhat","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-22T07:22:20.302Z","published":"2026-09-22T08:36:01.598Z","modified":"2026-11-06T02:13:55.014Z"}],"publishers":[{"name":"redhat","role":"CNA","organizationId":"53f830b8-0a3f-465b-8143-3b8a9948e749","modified":"2026-11-06T02:13:55.014Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-22T16:13:28.858Z"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-95508","tags":["vdb-entry","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2537748","tags":["issue-tracking","x_refsource_REDHAT"],"source":"redhat"}],"weaknesses":[{"id":"CWE-787","description":"Out-of-bounds Write","source":"redhat"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-22T16:13:20.788433Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Libslirp: libslirp: heap buffer overflow in dhcpv6/tftp response builders on small interface mtu","titleSource":"redhat","descriptionSource":"redhat","description":"A heap-based buffer overflow was found in the DHCPv6 and TFTP response builders of libslirp. When the host is configured with a small interface MTU, a guest-supplied DHCPv6 CLIENTID option or TFTP blksize option can overflow the reply buffer with attacker-controlled content and length, resulting in denial of service and potentially arbitrary code execution in the host process. The default interface MTU is not affected.","score":7.4,"severity":"high","published":"2026-09-22T08:36:01.598Z","modified":"2026-11-06T02:13:55.014Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:10"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 5","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:5"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"}],"remediation":[{"text":"Do not configure SlirpConfig.if_mtu below the IPv6 minimum link MTU of 1280.","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"}],"references":["https://access.redhat.com/security/cve/CVE-2026-95508","https://bugzilla.redhat.com/show_bug.cgi?id=2537748"],"sources":[{"name":"CVE","id":"CVE-2026-95508","modified":"2026-11-06T02:13:55.014Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","score":7.4}],"sourceAffected":[],"observedAt":"2026-11-06T03:16:53.525Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:55:31.093Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-03T04:40:33.501Z","attemptedAt":"2026-11-03T04:40:33.501Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-03T04:40:34.267Z","attemptedAt":"2026-11-03T04:40:34.267Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-03T04:40:33.814Z","attemptedAt":"2026-11-03T04:40:33.814Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-03T04:40:37.569Z","attemptedAt":"2026-11-03T04:40:37.569Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-95508","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95508","modified":"2026-09-22T19:37:36.747","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","checkedAt":"2026-11-03T04:40:33.501Z"},{"source":"ENISA EUVD","id":"EUVD-2026-84336","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-84336","modified":"Sep 22, 2026, 4:13:28 PM","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","checkedAt":"2026-11-03T04:40:33.814Z"},{"source":"GitHub Advisory Database","id":"GHSA-3qjr-gg7g-qcrr","url":"https://github.com/advisories/GHSA-3qjr-gg7g-qcrr","modified":"2026-09-22T09:31:17Z","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","checkedAt":"2026-11-03T04:40:34.267Z"},{"source":"FIRST EPSS","id":"CVE-2026-95508","url":"https://www.first.org/epss/","probability":0.0057,"percentile":0.47188,"date":"2026-11-02","checkedAt":"2026-11-03T04:40:37.569Z"}],"aiSummary":{"text":"A heap buffer overflow was found in libslirp's DHCPv6 and TFTP response builders when the host is configured with a small interface MTU. This can cause denial of service and potentially arbitrary code execution. The default interface MTU is not affected.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-06T03:21:08.849Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-95508"}]}}