IBM Lotus Notes: Code Execution (CVE-2012-4823)
Published Sources: CVE.org
What is affected, what to do
Unspecified vulnerability in the JRE component in IBM Java 7 SR2 and earlier, Java 6.0.1 SR3 and earlier, Java 6 SR11 and earlier, Java 5 SR14 and earlier, and Java 142 SR13 FP13 and earlier; as used in IBM Rational Host On-Demand, Rational Change, Tivoli Monitoring, Smart Analytics System 5600, Tivoli Remote Control 5.1.2, WebSphere Real Time, Lotus Notes & Domino, Tivoli Storage Productivity Center, and Service Deliver Manager; and other products from other vendors such as Red Hat, allows remote attackers to execute arbitrary code via vectors related to "insecure use of the java.lang.ClassLoder defineClass() method."
The available sources name no fixed version. Check the vendor guidance in the references below.
- Affected
- IBM Java
lte 1.4.2..1.4.2.13.13 - IBM Java
lte 5.0.0.0..5.0.14.0 - IBM Java
lte 6.0.0.0..6.0.11.0 - IBM Java
lte 7.0.0.0..7.0.2.0 - IBM Lotus Domino
eq 8.0..8.0 - IBM Lotus Domino
eq 8.0.1..8.0.1 - IBM Lotus Domino
eq 8.0.2..8.0.2 - IBM Lotus Domino
eq 8.0.2.1..8.0.2.1 - IBM Lotus Domino
eq 8.0.2.2..8.0.2.2 - IBM Lotus Domino
eq 8.0.2.3..8.0.2.3 - IBM Lotus Domino
eq 8.0.2.4..8.0.2.4 - IBM Lotus Domino
eq 8.5.0..8.5.0 - IBM Lotus Domino
eq 8.5.0.1..8.5.0.1 - IBM Lotus Domino
eq 8.5.1..8.5.1 - IBM Lotus Domino
eq 8.5.1.1..8.5.1.1 - IBM Lotus Domino
eq 8.5.1.2..8.5.1.2 - IBM Lotus Domino
eq 8.5.1.3..8.5.1.3 - IBM Lotus Domino
eq 8.5.1.4..8.5.1.4 - IBM Lotus Domino
eq 8.5.1.5..8.5.1.5 - IBM Lotus Domino
eq 8.5.2.0..8.5.2.0 - IBM Lotus Domino
eq 8.5.2.1..8.5.2.1 - IBM Lotus Domino
eq 8.5.2.2..8.5.2.2 - IBM Lotus Domino
eq 8.5.2.3..8.5.2.3 - IBM Lotus Domino
eq 8.5.2.4..8.5.2.4 - IBM Lotus Domino
eq 8.5.3.0..8.5.3.0 - IBM Lotus Domino
eq 8.5.3.1..8.5.3.1 - IBM Lotus Domino
eq 8.5.3.2..8.5.3.2 - IBM Lotus Notes
eq 8.0..8.0 - IBM Lotus Notes
eq 8.0.0..8.0.0 - IBM Lotus Notes
eq 8.0.1..8.0.1 - IBM Lotus Notes
eq 8.0.2..8.0.2 - IBM Lotus Notes
eq 8.0.2.0..8.0.2.0 - IBM Lotus Notes
eq 8.0.2.1..8.0.2.1 - IBM Lotus Notes
eq 8.0.2.2..8.0.2.2 - IBM Lotus Notes
eq 8.0.2.3..8.0.2.3 - IBM Lotus Notes
eq 8.0.2.4..8.0.2.4 - IBM Lotus Notes
eq 8.0.2.5..8.0.2.5 - IBM Lotus Notes
eq 8.0.2.6..8.0.2.6 - IBM Lotus Notes
eq 8.5..8.5 - IBM Lotus Notes
eq 8.5.0.0..8.5.0.0 - IBM Lotus Notes
eq 8.5.0.1..8.5.0.1 - IBM Lotus Notes
eq 8.5.1..8.5.1 - IBM Lotus Notes
eq 8.5.1.0..8.5.1.0 - IBM Lotus Notes
eq 8.5.1.1..8.5.1.1 - IBM Lotus Notes
eq 8.5.1.2..8.5.1.2 - IBM Lotus Notes
eq 8.5.1.3..8.5.1.3 - IBM Lotus Notes
eq 8.5.1.4..8.5.1.4 - IBM Lotus Notes
eq 8.5.1.5..8.5.1.5 - IBM Lotus Notes
eq 8.5.2.0..8.5.2.0 - IBM Lotus Notes
eq 8.5.2.1..8.5.2.1 - IBM Lotus Notes
eq 8.5.2.2..8.5.2.2 - IBM Lotus Notes
eq 8.5.2.3..8.5.2.3 - IBM Lotus Notes
eq 8.5.3..8.5.3 - IBM Lotus Notes
eq 8.5.3.1..8.5.3.1 - IBM Lotus Notes
eq 8.5.3.2..8.5.3.2 - IBM Lotus Notes
eq 8.5.4..8.5.4 - IBM Lotus Notes Sametime Advanced Embedded
eq 8.0.80407..8.0.80407 - IBM Lotus Notes Sametime Advanced Embedded
eq 8.0.80822..8.0.80822 - IBM Lotus Notes Sametime Advanced Embedded
eq 8.5.1.20100709-1631..8.5.1.20100709-1631 - IBM Lotus Notes Traveler
eq 8.0..8.0 - IBM Lotus Notes Traveler
eq 8.0.1..8.0.1 - IBM Lotus Notes Traveler
eq 8.0.1.2..8.0.1.2 - IBM Lotus Notes Traveler
eq 8.0.1.3..8.0.1.3 - IBM Lotus Notes Traveler
eq 8.5.0.0..8.5.0.0 - IBM Lotus Notes Traveler
eq 8.5.0.1..8.5.0.1 - IBM Lotus Notes Traveler
eq 8.5.0.2..8.5.0.2 - IBM Lotus Notes Traveler
eq 8.5.1.1..8.5.1.1 - IBM Lotus Notes Traveler
eq 8.5.1.2..8.5.1.2 - IBM Lotus Notes Traveler
eq 8.5.1.3..8.5.1.3 - IBM Lotus Notes Traveler
eq 8.5.2.1..8.5.2.1 - IBM Lotus Notes Traveler
eq 8.5.3..8.5.3 - IBM Lotus Notes Traveler
eq 8.5.3.1..8.5.3.1 - IBM Lotus Notes Traveler
eq 8.5.3.2..8.5.3.2 - IBM Lotus Notes Traveler
eq 8.5.3.3..8.5.3.3 - IBM Rational
eq 4.7..4.7 - IBM Rational
eq 5.1..5.1 - IBM Rational
eq 5.2..5.2 - IBM Rational
eq 5.3..5.3 - IBM Rational Host On-Demand
eq 1.6.0.12..1.6.0.12 - IBM Rational Host On-Demand
eq 8.0.8.0..8.0.8.0 - IBM Rational Host On-Demand
eq 9.0.8.0..9.0.8.0 - IBM Rational Host On-Demand
eq 10.0.9.0..10.0.9.0 - IBM Rational Host On-Demand
eq 10.0.10.0..10.0.10.0 - IBM Rational Host On-Demand
eq 11.0.3.0..11.0.3.0 - IBM Rational Host On-Demand
eq 11.0.4.0..11.0.4.0 - IBM Rational Host On-Demand
eq 11.0.5.0..11.0.5.0 - IBM Rational Host On-Demand
eq 11.0.5.1..11.0.5.1 - IBM Rational Host On-Demand
eq 11.0.6.0..11.0.6.0 - IBM Rational Host On-Demand
eq 11.0.6.1..11.0.6.1 - IBM Service Delivery Manager
eq 7.2.1.0..7.2.1.0 - IBM Service Delivery Manager
eq 7.2.2.0..7.2.2.0 - IBM Smart Analytics System 5600 Software
eq 9.7..9.7 - IBM Tivoli Monitoring
eq 6.1.0..6.1.0 - IBM Tivoli Monitoring
eq 6.1.0.7..6.1.0.7 - IBM Tivoli Monitoring
eq 6.2.0..6.2.0 - IBM Tivoli Monitoring
eq 6.2.0.1..6.2.0.1 - IBM Tivoli Monitoring
eq 6.2.0.2..6.2.0.2 - IBM Tivoli Monitoring
eq 6.2.0.3..6.2.0.3 - IBM Tivoli Monitoring
eq 6.2.1..6.2.1 - IBM Tivoli Monitoring
eq 6.2.1.0..6.2.1.0 - IBM Tivoli Monitoring
eq 6.2.1.1..6.2.1.1 - IBM Tivoli Monitoring
eq 6.2.1.2..6.2.1.2 - IBM Tivoli Monitoring
eq 6.2.1.3..6.2.1.3 - IBM Tivoli Monitoring
eq 6.2.1.4..6.2.1.4 - IBM Tivoli Monitoring
eq 6.2.2..6.2.2 - IBM Tivoli Monitoring
eq 6.2.2.0..6.2.2.0 - IBM Tivoli Monitoring
eq 6.2.2.1..6.2.2.1 - IBM Tivoli Monitoring
eq 6.2.2.2..6.2.2.2 - IBM Tivoli Monitoring
eq 6.2.2.3..6.2.2.3 - IBM Tivoli Monitoring
eq 6.2.2.4..6.2.2.4 - IBM Tivoli Monitoring
eq 6.2.2.5..6.2.2.5 - IBM Tivoli Monitoring
eq 6.2.2.6..6.2.2.6 - IBM Tivoli Monitoring
eq 6.2.2.7..6.2.2.7 - IBM Tivoli Monitoring
eq 6.2.2.8..6.2.2.8 - IBM Tivoli Monitoring
eq 6.2.2.9..6.2.2.9 - IBM Tivoli Monitoring
eq 6.2.3..6.2.3 - IBM Tivoli Monitoring
eq 6.2.3.0..6.2.3.0 - IBM Tivoli Monitoring
eq 6.2.3.1..6.2.3.1 - IBM Tivoli Monitoring
eq 6.2.3.2..6.2.3.2 - IBM Tivoli Remote Control
eq 5.1.2..5.1.2 - IBM Websphere Real Time
eq 2.0..2.0 - IBM Websphere Real Time
eq 3.0..3.0 - IBM Smart Analytics System 5600 Model
eq 7200..7200
- IBM Java
Not sure whether and how you are affected? Ask a question about this vulnerability
Metrics
—
Priority
No value is available for this vulnerability.
—
CVSS v3
No value is available for this vulnerability.
6.9 %
EPSS score
Moderate — model estimates 1-10% exploitation likelihood.
Source: FIRST EPSS, percentile 94.0
Show all metrics
- Severity
- Not rated
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 70.75 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
EPSS score
The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.
Read in glossary- 6.9 %
- Moderate — model estimates 1-10% exploitation likelihood.
EPSS percentile
The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.
Read in glossary- 94.0
- Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
Unspecified vulnerability in the JRE component in IBM Java 7 SR2 and earlier, Java 6.0.1 SR3 and earlier, Java 6 SR11 and earlier, Java 5 SR14 and earlier, and Java 142 SR13 FP13 and earlier; as used in IBM Rational Host On-Demand, Rational Change, Tivoli Monitoring, Smart Analytics System 5600, Tivoli Remote Control 5.1.2, WebSphere Real Time, Lotus Notes & Domino, Tivoli Storage Productivity Center, and Service Deliver Manager; and other products from other vendors such as Red Hat, allows remote attackers to execute arbitrary code via vectors related to "insecure use of the java.lang.ClassLoder defineClass() method."
Source: cvelistv5, NVD (NIST)
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| ibm | java |
|
|
| ibm | lotus_domino |
|
|
| ibm | lotus_notes |
|
|
Vendors and products
- IBM IBM Java
- IBM IBM Lotus Domino
- IBM IBM Lotus Notes
- IBM IBM Lotus Notes Sametime Advanced Embedded
- IBM IBM Lotus Notes Traveler
- IBM IBM Rational
- IBM IBM Rational Host On-Demand
- IBM IBM Service Delivery Manager
- IBM IBM Smart Analytics System 5600 Model
- IBM IBM Smart Analytics System 5600 Software
- IBM IBM Tivoli Monitoring
- IBM IBM Tivoli Remote Control
References & sources
- rhn.redhat.comRHSA-2012:1466Vendor advisory, x_refsource_REDHAT, Third-party advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616616x_refsource_CONFIRM, Vendor advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616594x_refsource_CONFIRM, Vendor advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616617x_refsource_CONFIRM, Vendor advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21621154x_refsource_CONFIRM, Vendor advisory
- seclists.org20120911 [SE-2012-01] Security vulnerabilities in IBM JavaMailing list, x_refsource_BUGTRAQ, Mailing list, Third-party advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616652x_refsource_CONFIRM, Vendor advisory
- rhn.redhat.comRHSA-2013:1455Vendor advisory, x_refsource_REDHAT, Third-party advisory
- www-01.ibm.comIV29687Vendor advisory, x_refsource_AIXAPAR, Vendor advisory
- securityfocus.com55495Vulnerability database, x_refsource_BID, Third-party advisory, Vulnerability database
- www-01.ibm.comsupport/docview.wss?uid=swg21615800x_refsource_CONFIRM, Vendor advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616490x_refsource_CONFIRM, Vendor advisory
- secunia.com51327Third-party advisory, x_refsource_SECUNIA, Third-party advisory
- www-304.ibm.comsupport/docview.wss?uid=swg21616546x_refsource_CONFIRM, Vendor advisory
- exchange.xforce.ibmcloud.comibm-java-defineclass-code-execution(78767)Vulnerability database, x_refsource_XF, Vulnerability database
- rhn.redhat.comRHSA-2012:1467Vendor advisory, x_refsource_REDHAT, Third-party advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21616708x_refsource_CONFIRM, Vendor advisory
- secunia.com51634Third-party advisory, x_refsource_SECUNIA, Third-party advisory
- www-01.ibm.comsupport/docview.wss?uid=swg21615705x_refsource_CONFIRM, Vendor advisory
- rhn.redhat.comRHSA-2013:1456Vendor advisory, x_refsource_REDHAT, Third-party advisory
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<a href="https://intel.neosec.eu/en/cve/CVE-2012-4823"><img src="https://intel.neosec.eu/badge/cve/CVE-2012-4823.svg?lang=en" alt="CVE-2012-4823 – NEOSEC Intel" height="20"></a>