{"id":"CVE-2026-16277","aliases":["AZL-93009","BELL-CVE-2026-16277","DEBIAN-CVE-2026-16277","EUVD-2026-45950","GHSA-mjwp-v273-38g8","UBUNTU-CVE-2026-16277"],"status":"published","title":"Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00505,"percentile":0.43634,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-121"],"published":"2026-07-20T14:09:38Z","modified":"2026-11-05T16:43:12Z","fixes":[{"ecosystem":"Azure Linux:3","package":"rpcbind","fixed_in":["1.2.9-1"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"rpcbind","fixed_in":["1.2.6-r2"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"rpcbind","fixed_in":["1.2.7-r1"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"rpcbind","fixed_in":["1.2.9-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.9-1"}]}]},{"source":"osv","ecosystem":"Alpaquita:23","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.6-r1"},{"fixed":"1.2.6-r2"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.7-r0"},{"fixed":"1.2.7-r1"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.6-r0"},{"fixed":"1.2.9-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.6-6","1.2.6-7","1.2.6-8","1.2.6-8.1","1.2.7-1"]},{"source":"osv","ecosystem":"Debian:13","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.7-1"]},{"source":"osv","ecosystem":"Debian:14","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.7-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.0-8.2ubuntu2","0.2.1-2ubuntu1","0.2.1-2ubuntu2.1","0.2.1-2ubuntu2.2","0.2.1-2ubuntu2.2+esm1","0.2.1-2ubuntu2.2+esm2","0.2.1-2ubuntu2.2+esm3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.1-6ubuntu4","0.2.3-0.2","0.2.3-0.2ubuntu0.1","0.2.3-0.2ubuntu0.16.04.1","0.2.3-0.2ubuntu0.16.04.1+esm1","0.2.3-0.2ubuntu0.16.04.1+esm2","0.2.3-0.2ubuntu0.16.04.1+esm3"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.3-0.6","0.2.3-0.6ubuntu0.18.04.1","0.2.3-0.6ubuntu0.18.04.2","0.2.3-0.6ubuntu0.18.04.3","0.2.3-0.6ubuntu0.18.04.4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.5-6","1.2.5-8"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.5-9build1","1.2.6-2","1.2.6-2build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.6-6","1.2.6-7","1.2.6-7build1","1.2.6-7ubuntu1","1.2.6-7ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.7-1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"rpcbind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.7-1build1","1.2.7-1build2"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat openshift container platform 4"},{"vendor":"red hat","product":"red hat openshift container platform 5"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-16277","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2462085","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://git.linux-nfs.org/?p=steved/rpcbind.git;a=commitdiff;h=bb9bb7286a4c345442946dc2ce3c9e7f67e96d4d"},{"url":"https://www.linuxfromscratch.org/blfs/advisories/consolidated.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16277","tags":["web"]},{"url":"https://github.com/advisories/GHSA-mjwp-v273-38g8"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-16277","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-16277","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-16277","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-16277","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-16277","title":"Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T14:09:38.333Z","modified":"2026-11-05T16:43:12.829Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-05T17:53:58.925122Z"}],"euvd":[{"id":"EUVD-2026-45950","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T14:09:38Z","modified":"2026-11-05T16:43:12Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-05T18:00:57.863749Z"}],"ghsa":[{"id":"GHSA-mjwp-v273-38g8","title":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote...","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T15:32:08Z","modified":"2026-07-20T15:32:14Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:09:36.920272Z"}],"nvd":[{"id":"CVE-2026-16277","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T15:16:36.72Z","modified":"2026-11-05T17:18:12.877Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-05T19:55:57.517766Z"}],"osv":[{"id":"BELL-CVE-2026-16277","status":"published","published":"2026-07-22T06:04:20.551043Z","modified":"2026-08-01T07:15:05.885923772Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:23.037038Z"},{"id":"DEBIAN-CVE-2026-16277","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T15:16:36.72Z","modified":"2026-10-01T03:02:51.637150663Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:52.562592Z"},{"id":"UBUNTU-CVE-2026-16277","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T15:16:00Z","modified":"2026-10-17T12:59:53.220501048Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"AZL-93009","title":"CVE-2026-16277 affecting package rpcbind for versions less than 1.2.9-1","description":"A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","status":"published","published":"2026-07-20T15:16:36Z","modified":"2026-08-28T17:56:43.828025Z","updated_at":"2026-11-02T15:28:11.723718Z"}]}}