--- id: CVE-2012-4681 title: >- Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) usi… summary: >- Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) usi… severity: critical cvss: 9.8 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H' cwe: - CWE-284 vendor: oracle product: jdk affected: - jdk = 1.6.0 - jdk = 1.7.0 - jre = 1.6.0 - jre = 1.7.0 - enterprise_linux_desktop = 6.0 - enterprise_linux_eus = 6.3 - enterprise_linux_server = 6.0 - enterprise_linux_workstation = 6.0 published: '2012-08-28' updated: '2026-08-04' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2012-4681' references: - url: >- http://blog.fireeye.com/research/2012/08/zero-day-season-is-not-over-yet.html label: cve@mitre.org - url: >- http://immunityproducts.blogspot.com/2012/08/java-0day-analysis-cve-2012-4681.html label: cve@mitre.org - url: >- http://labs.alienvault.com/labs/index.php/2012/new-java-0day-exploited-in-the-wild/ label: cve@mitre.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00032.html' label: cve@mitre.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00016.html' label: cve@mitre.org - url: 'http://marc.info/?l=bugtraq&m=135109152819176&w=2' label: cve@mitre.org - url: 'http://rhn.redhat.com/errata/RHSA-2012-1225.html' label: cve@mitre.org - url: 'http://secunia.com/advisories/51044' label: cve@mitre.org - url: 'http://www.deependresearch.org/2012/08/java-7-vulnerability-analysis.html' label: cve@mitre.org - url: >- http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html label: cve@mitre.org - url: 'http://www.securityfocus.com/bid/55213' label: cve@mitre.org - url: 'http://www.us-cert.gov/cas/techalerts/TA12-240A.html' label: cve@mitre.org - url: >- https://community.rapid7.com/community/metasploit/blog/2012/08/27/lets-start-the-week-with-a-new-java-0day label: cve@mitre.org - url: >- http://blog.fireeye.com/research/2012/08/zero-day-season-is-not-over-yet.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://immunityproducts.blogspot.com/2012/08/java-0day-analysis-cve-2012-4681.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://labs.alienvault.com/labs/index.php/2012/new-java-0day-exploited-in-the-wild/ label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00032.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00016.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://marc.info/?l=bugtraq&m=135109152819176&w=2' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://rhn.redhat.com/errata/RHSA-2012-1225.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://secunia.com/advisories/51044' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.deependresearch.org/2012/08/java-7-vulnerability-analysis.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securityfocus.com/bid/55213' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.us-cert.gov/cas/techalerts/TA12-240A.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://community.rapid7.com/community/metasploit/blog/2012/08/27/lets-start-the-week-with-a-new-java-0day label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4681 label: 134c704f-9b21-4f2e-91b3-4a467353bcc0 tags: - nvd - kev - in-the-wild - exploit-available epss: 0.98536 epssPercentile: 0.9992 kev: true kevDateAdded: '2022-03-03' kevDueDate: '2022-03-24' kevRansomware: true exploited: true exploitAvailable: true ingestedAt: '2026-08-04T05:36:12.004Z' exploits: exploitdb: true github: 2 githubRepos: - 'https://github.com/benjholla/CVE-2012-4681-Armoring' - 'https://github.com/ZH3FENG/PoCs-CVE_2012_4681' metasploit: - exploit/multi/browser/java_jre17_exec checkedAt: '2026-09-19T16:22:50.478Z' --- ## Overview Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findClass and leveraging an exception with the forName method to access restricted classes from arbitrary packages such as sun.awt.SunToolkit, then (2) using "reflection with a trusted immediate caller" to leverage the getField method to access and modify private fields, as exploited in the wild in August 2012 using Gondzz.class and Gondvv.class. ## Affected - `jdk = 1.6.0` - `jdk = 1.7.0` - `jre = 1.6.0` - `jre = 1.7.0` - `enterprise_linux_desktop = 6.0` - `enterprise_linux_eus = 6.3` - `enterprise_linux_server = 6.0` - `enterprise_linux_workstation = 6.0` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.