CVE-2011-2487

What it is

The implementations of PKCS#1 v1.5 key transport mechanism for XMLEncryption in JBossWS and Apache WSS4J before 1.6.5 is susceptible to a Bleichenbacher attack.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

1.8% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-03-11 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:31 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.8% in the next 30 days (EPSS).
• Severity: 5.9 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-03-11 16:15 UTC

Last modified

2026-06-16 23:31 UTC

Exploit probability

1.8% · EPSS, next 30 days

Weakness

CWE-327 · Broken cryptographic algorithm

Record status

Modified

Affected

• Apache Cxf ≤ 2.4.6
• Apache Cxf ≤ 2.5.2
• Apache wss4j < 1.6.5
• Redhat Jboss Business Rules Management System 5.3
• Redhat Jboss Enterprise Application Platform 5.0.0
• Redhat Jboss Enterprise Application Platform text-only Advisories
• Redhat Jboss Enterprise Soa Platform 4.2.0
• Redhat Jboss Enterprise Soa Platform 4.3.0

Attack profile CVSS 3.1 · 5.9

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

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