{"id":"CVE-2026-115449","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-115449","generatedAt":"2026-10-28T00:59:22.441Z","title":"Under specific conditions where the normal ICMP socket is unavailable, this length mismatch causes the host's real IP address to be leaked to the guest in the echo reply, breaking the NAT isolation that user-mode networking is expected to provide.","description":"A flaw was found in libslirp. When handling ICMP echo requests, the reply length is not updated to match the actual data received from the host. Under specific conditions where the normal ICMP socket is unavailable, this length mismatch causes the host's real IP address to be leaked to the guest in the echo reply, breaking the NAT isolation that user-mode networking is expected to provide.","published":"2026-10-22T22:18:07.000Z","lastModified":"2026-10-23T16:44:18.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":3.5,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N"},"cwe":["CWE-200"],"affected":[],"epss":{"score":0.00239,"percentile":0.14879,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00226,"percentile":0.12615}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-22T22:18:07.000Z","detail":{"score":"3.5","severity":"LOW","publishedAt":"2026-10-22T22:18:06.647Z"},"summary":"New CVE, low severity (CVSS 3.5)."}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-115449","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2558916","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115449","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}