{"affected":[{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rpcbind","product":"Red Hat Enterprise Linux 10","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rpcbind","product":"Red Hat Enterprise Linux 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rpcbind","product":"Red Hat Enterprise Linux 9","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rpcbind","product":"Red Hat OpenShift Container Platform 4","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rpcbind","product":"Red Hat OpenShift Container Platform 5","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2026-16461","cwes":["CWE-121"],"description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. In rpcbdump() short mode (used by `rpcinfo -s`), version numbers from a remote RPCBPROC_DUMP reply are written into a fixed-size stack buffer without bounds checking. A user or administrator who runs `rpcinfo -s` against a malicious or compromised rpcbind endpoint could experience a crash or denial of service of the rpcinfo client.","epss":{"date":"2026-11-05","percentile":0.17642,"score":0.00259},"exploits":[],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},{"score":6.5,"severity":"medium","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793899095120,"publishedAt":1784634123630,"references":[{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-16461"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502719"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/security/cve/CVE-2026-16461"},{"source":"secalert@redhat.com","tags":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502719"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"To mitigate this issue, avoid using the `rpcinfo -s` command against untrusted, attacker-controlled, or compromised rpcbind hosts. Restrict the use of the rpcinfo utility to trusted internal endpoints or secure test environments only."}],"revision":"944d0488eac942a40565e692a8b743fbd665ac85d6e19d4fe97e2f01d1ea7ba1","sources":[{"modifiedAt":1793897264099,"name":"CNA: redhat","retrievedAt":1793898810271,"url":"https://www.cve.org/CVERecord?id=CVE-2026-16461"},{"modifiedAt":1793899095120,"name":"NVD","retrievedAt":1793902839055,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16461"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793898812028,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-16461"}],"ssvc":{"assessedAt":1784730588233,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbdump() short-mode version-list formatting","updatedAt":1793902839055}