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CVE-2017-12149

98
FAUCET Score

CVE-2017-12149 is a critical deserialization vulnerability in the JBoss Application Server, specifically in Red Hat Enterprise Application Platform 5.2. This flaw allows unauthenticated attackers to execute arbitrary code remotely by sending crafted serialized data to the HTTP Invoker's ReadOnlyAccessFilter. With a CVSS score of 9.8 and an EPSS score indicating high exploitability, this vulnerability poses a severe risk, leading to complete compromise of confidentiality, integrity, and availability. It is actively exploited in the wild, including in known ransomware campaigns, with public exploit modules available in Metasploit and Nuclei, and significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:-:*:*:*:text-only:*:*:*
5.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:5.0.0:*:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:5.0.1:*:*:*:*:*:*:*
5.1.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:5.1.0:*:*:*:*:*:*:*
5.1.1CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:5.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
90.71%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Dec 10, 2021
Nuclei: CVE-2017-12149 · May 11, 2021
This CVE's current EPSS score of 0.9071 is in the 99th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5.2 security updateFixed in: eap-parent
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5 for RHEL 5Fixed in: jbossas-0:5.2.0-24.ep5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5 for RHEL 6Fixed in: jbossas-0:5.2.0-24.ep5.el6
View patch

Vendor Advisories (1)

redhatCVE-2017-12149Critical

jbossas: Arbitrary code execution via unrestricted deserialization in ReadOnlyAccessFilter of HTTP Invoker.

Aug 30, 2017

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
access.redhat.com / errata/RHSA-2018:1607
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1608
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
github.com / gottburgm/Exploits/tree/master/CVE-2017-12149
Third Party Advisory
securityfocus.com / bid/100591
Broken LinkThird Party AdvisoryVDB Entry