CVE-2011-2487

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.

Published: 2020-03-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2487 is rated Moderate Risk (51.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.76%). EPSS rose +1.27% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-2487

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.49% 1.76% +1.27%
2 2025-12-14 0.14% 0.49% +0.35%
3 2025-04-03 — 0.14% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2487

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-2487

GitHub Security Advisory for CVE-2011-2487

GHSA-4qqf-hmv6-r6wh · Severity: medium · Ecosystem: maven — Use of a Broken or Risky Cryptographic Algorithm in Apache WSS4J

OS Trackers for CVE-2011-2487

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2011-2487

Affected software / configurations for CVE-2011-2487

Vendor Product Version Raw CPE
apache cxf >= 2.4.0, <= 2.4.6 cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache cxf >= 2.5.0, <= 2.5.2 cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache wss4j < 1.6.5 cpe:2.3:a:apache:wss4j:*:*:*:*:*:*:*:*
redhat jboss_business_rules_management_system 5.3 cpe:2.3:a:redhat:jboss_business_rules_management_system:5.3:*:*:*:*:*:*:*
redhat jboss_enterprise_application_platform 5.0.0 cpe:2.3:a:redhat:jboss_enterprise_application_platform:5.0.0:*:*:*:*:*:*:*
redhat jboss_enterprise_application_platform_text-only_advisories — cpe:2.3:a:redhat:jboss_enterprise_application_platform_text-only_advisories:-:*:*:*:*:*:*:*
redhat jboss_enterprise_soa_platform 4.2.0 cpe:2.3:a:redhat:jboss_enterprise_soa_platform:4.2.0:*:*:*:*:*:*:*
redhat jboss_enterprise_soa_platform 4.3.0 cpe:2.3:a:redhat:jboss_enterprise_soa_platform:4.3.0:*:*:*:*:*:*:*
redhat jboss_enterprise_web_platform 5.0.0 cpe:2.3:a:redhat:jboss_enterprise_web_platform:5.0.0:*:*:*:*:*:*:*
redhat jboss_middleware_text-only_advisories — cpe:2.3:a:redhat:jboss_middleware_text-only_advisories:-:*:*:*:*:*:*:*
redhat jboss_portal 4.0.0 cpe:2.3:a:redhat:jboss_portal:4.0.0:*:*:*:*:*:*:*
redhat jboss_web_services — cpe:2.3:a:redhat:jboss_web_services:-:*:*:*:*:*:*:*

References for CVE-2011-2487

URL Tags
http://cxf.apache.org/note-on-cve-2011-2487.html Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0191.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0192.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0193.html Broken Link Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0194.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0195.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0196.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0198.html Patch Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-0221.html Patch Vendor Advisory
http://www.securityfocus.com/bid/57549 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=713539 Issue Tracking Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/81737 VDB Entry Vendor Advisory
https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E
https://www.nds.ruhr-uni-bochum.de/research/publications/breaking-xml-encryption-pkcs15/ Technical Description Third Party Advisory
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