Is CVE-2012-4681 in the CISA KEV catalog?

Yes. CVE-2012-4681 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-03, and has known ransomware campaign use.

What is the CVSS severity of CVE-2012-4681?

CVE-2012-4681 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2012-4681?

CVE-2012-4681 has an EPSS score of 98.54% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2012-4681?

No published fix for CVE-2012-4681 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-03-24. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2012-4681

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

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.

CWE-284Improper Access Control

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-03-24

Known ransomware campaign use

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

98.54%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution Vulnerability

The Java Runtime Environment (JRE) component in Oracle Java SE allow for remote code execution.

Apply updates per vendor instructions.

Remediation due: 2022-03-24

Associated with ransomware campaigns

References

Exploit2

Vendor Advisory1

oracle.com

Third-Party Advisory7

Government Resource1

cisa.gov

Mailing List2

Other references1

secunia.com

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.