{"id":"CVE-2010-4777","url":"https://www.cyber-defence.io/tools/cve/CVE-2010-4777","generatedAt":"2026-10-27T17:44:35.923Z","title":"The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0, 5.14.0, and other versions, when running with debugging enabled, allows context-dependent attackers to cause a denial of service (assertion failure and application exit) via crafted input…","description":"The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0, 5.14.0, and other versions, when running with debugging enabled, allows context-dependent attackers to cause a denial of service (assertion failure and application exit) via crafted input that is not properly handled when using certain regular expressions, as demonstrated by causing SpamAssassin and OCSInventory to crash.","published":"2014-02-10T18:15:09.000Z","lastModified":"2026-06-16T23:25:32.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P"},"cwe":["CWE-20"],"affected":["perl/perl"],"epss":{"score":0.06018,"percentile":0.93292,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2011-03-23","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":35489,"kind":"exploit","title":"Perl 5.x - 'Perl_reg_numbered_buff_fetch()' Remote Denial of Service","url":"https://www.exploit-db.com/exploits/35489","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/35489.pl","file":"exploits/multiple/dos/35489.pl","published":"2011-03-23","added":"2011-03-23","updated":"2014-12-08","author":"Vladimir Perepelitsa","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2010-4777","OSVDB-74745"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/47006/info"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 6.0%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628836","source":"cve@mitre.org"},{"url":"http://forums.ocsinventory-ng.org/viewtopic.php?id=7215","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2011-05/msg00025.html","source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=694166","source":"cve@mitre.org"},{"url":"https://listi.jpberlin.de/pipermail/postfixbuch-users/2011-February/055885.html","source":"cve@mitre.org"},{"url":"https://rt.perl.org/Public/Bug/Display.html?id=76538","source":"cve@mitre.org"},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628836","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://forums.ocsinventory-ng.org/viewtopic.php?id=7215","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2011-05/msg00025.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=694166","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://listi.jpberlin.de/pipermail/postfixbuch-users/2011-February/055885.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://rt.perl.org/Public/Bug/Display.html?id=76538","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2010-4777","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."}