{"id":"CVE-2011-2900","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-2900","generatedAt":"2026-10-27T17:56:37.237Z","title":"Stack-based buffer overflow in the (1) put_dir function in mongoose.c in Mongoose 3.0, (2) put_dir function in yasslEWS.c in yaSSL Embedded Web Server (yasslEWS) 0.2, and (3) _shttpd_put_dir function in io_dir.c in Simple HTTPD (shttpd) 1.42 allows…","description":"Stack-based buffer overflow in the (1) put_dir function in mongoose.c in Mongoose 3.0, (2) put_dir function in yasslEWS.c in yaSSL Embedded Web Server (yasslEWS) 0.2, and (3) _shttpd_put_dir function in io_dir.c in Simple HTTPD (shttpd) 1.42 allows remote attackers to execute arbitrary code via an HTTP PUT request, as exploited in the wild in 2011.","published":"2011-08-05T21:55:09.000Z","lastModified":"2026-06-16T23:32:13.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["shttpd/shttpd","valenok/mongoose","yassl/yasslews"],"epss":{"score":0.13256,"percentile":0.96356,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":false,"firstPublished":"2011-08-12","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":17669,"kind":"exploit","title":"Simple HTTPd 1.42 - 'PUT' Remote Buffer Overflow","url":"https://www.exploit-db.com/exploits/17669","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/17669.py","file":"exploits/windows/remote/17669.py","published":"2011-08-15","added":"2011-08-15","updated":"2011-08-15","author":"nion","type":"remote","platform":"windows","port":null,"verified":false,"codes":["CVE-2011-2900"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comshttpd-1.42.tar.gz","screenshotUrl":null,"referenceUrl":null},{"edbId":17658,"kind":"exploit","title":"Simple HTTPd 1.42 - Denial of Servive","url":"https://www.exploit-db.com/exploits/17658","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/17658.py","file":"exploits/windows/dos/17658.py","published":"2011-08-12","added":"2011-08-12","updated":"2011-08-12","author":"G13","type":"dos","platform":"windows","port":null,"verified":false,"codes":["CVE-2011-2900"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comshttpd-1.42.tar.gz","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 13.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065273.html","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065505.html","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065537.html","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/45464","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/45902","source":"secalert@redhat.com"},{"url":"http://securityreason.com/securityalert/8337","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2011/08/03/5","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2011/08/03/9","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/48980","source":"secalert@redhat.com"},{"url":"https://code.google.com/p/mongoose/source/detail?r=556f4de91eae4bac40dc5d4ddbd9ec7c424711d0","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/68991","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065273.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065505.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065537.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/45464","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/45902","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securityreason.com/securityalert/8337","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2011/08/03/5","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2011/08/03/9","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/48980","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://code.google.com/p/mongoose/source/detail?r=556f4de91eae4bac40dc5d4ddbd9ec7c424711d0","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/68991","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-2900","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."}