{"id":"CVE-2011-1739","aliases":["EUVD-2011-1738","GHSA-xr9g-g7xh-rw7g"],"status":"published","title":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a...","description":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01282,"percentile":0.70267,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2011-05-03T20:00:00Z","modified":"2026-06-16T23:29:55Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://www.vupen.com/english/advisories/2011/1076","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred"]},{"url":"http://www.securityfocus.com/bid/47517","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66981","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://securitytracker.com/id?1025425","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/44307","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1739"},{"url":"https://github.com/advisories/GHSA-xr9g-g7xh-rw7g"}],"sources":{"cve":[{"id":"CVE-2011-1739","description":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.","status":"published","published":"2011-05-03T20:00:00Z","modified":"2024-08-06T22:37:25.786Z","updated_at":"2026-11-02T14:35:38.321377Z"}],"euvd":[{"id":"EUVD-2011-1738","description":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.","status":"published","published":"2011-05-03T20:00:00Z","modified":"2024-08-06T22:37:25Z","updated_at":"2026-11-03T01:55:55.718493Z"}],"ghsa":[{"id":"GHSA-xr9g-g7xh-rw7g","title":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a...","description":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.","status":"published","published":"2022-05-17T01:59:37Z","modified":"2023-02-03T05:06:52Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:53:57.460736Z"}],"nvd":[{"id":"CVE-2011-1739","description":"The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.","status":"published","published":"2011-05-03T20:55:12.417Z","modified":"2026-06-16T23:29:55.97Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:08.47516Z"}]}}