{"id":"CVE-2007-1649","url":"https://www.cyber-defence.io/tools/cve/CVE-2007-1649","generatedAt":"2026-10-27T19:36:58.762Z","title":"PHP 5.2.1 allows context-dependent attackers to read portions of heap memory by executing certain scripts with a serialized data input string beginning with S:, which does not properly track the number of input bytes being processed.","description":"PHP 5.2.1 allows context-dependent attackers to read portions of heap memory by executing certain scripts with a serialized data input string beginning with S:, which does not properly track the number of input bytes being processed.","published":"2007-03-24T00:19:00.000Z","lastModified":"2026-06-16T22:38:02.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.8,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:N/A:N"},"cwe":[],"affected":["php/php"],"epss":{"score":0.07488,"percentile":0.94437,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2007-03-23","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":3559,"kind":"exploit","title":"PHP 5.2.1 - 'Unserialize()' Local Information Leak","url":"https://www.exploit-db.com/exploits/3559","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/local/3559.php","file":"exploits/multiple/local/3559.php","published":"2007-03-23","added":"2007-03-22","updated":"2016-09-30","author":"Stefan Esser","type":"local","platform":"multiple","port":null,"verified":true,"codes":["OSVDB-33943","CVE-2007-1649"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comphp-5.2.1.tar.gz","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 7.5%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://secunia.com/advisories/24630","source":"cve@mitre.org"},{"url":"http://us2.php.net/releases/5_2_2.php","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2008:126","source":"cve@mitre.org"},{"url":"http://www.php-security.org/MOPB/MOPB-29-2007.html","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/23105","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/33170","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/24630","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://us2.php.net/releases/5_2_2.php","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2008:126","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.php-security.org/MOPB/MOPB-29-2007.html","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/23105","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/33170","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2007-1649","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."}