Is CVE-2012-5076 being actively exploited?

Yes. CVE-2012-5076 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on March 28, 2022.

What is the CVSS score for CVE-2012-5076?

CVE-2012-5076 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2012-5076

CRITICAL · CVSS 9.8CISA KEV: actively exploitedEPSS 91.3%EU EUVD: exploited

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier allows remote attackers to affect confidentiality, integrity, and availability, related to JAX-WS.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-284
EPSS score: 91.3% (100th percentile)
In CISA KEV: Yes, added March 28, 2022
In EU EUVD: Yes (EUVD-2012-4999)
Published: October 16, 2012
NVD last modified: June 16, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Oracle Java SE Sandbox Bypass Vulnerability

Added to the KEV catalog on March 28, 2022; federal remediation due April 18, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4999 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
suse / linux enterprise desktop

References

http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00016.html(Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-1386.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-1391.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-1467.html(Third Party Advisory)
http://secunia.com/advisories/51029(Not Applicable)
http://secunia.com/advisories/51326(Not Applicable)
http://secunia.com/advisories/51390(Not Applicable)
http://security.gentoo.org/glsa/glsa-201406-32.xml(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/javacpuoct2012-1515924.html(Patch, Vendor Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16641(Broken Link)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-5076(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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