Is CVE-2017-12149 in the CISA KEV catalog?

Yes. CVE-2017-12149 is on the CISA Known Exploited Vulnerabilities list, added 2021-12-10, and has known ransomware campaign use.

What is the CVSS severity of CVE-2017-12149?

CVE-2017-12149 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-12149?

CVE-2017-12149 has an EPSS score of 90.71% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2017-12149

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.

CWE-502Deserialization of Untrusted Data

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

90.71%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)

Red Hat JBoss Application Server Remote Code Execution Vulnerability

The JBoss Application Server, shipped with Red Hat Enterprise Application Platform 5.2, allows an attacker to execute arbitrary code via crafted serialized data.

Apply updates per vendor instructions.

Remediation due: 2022-06-10

Associated with ransomware campaigns

References

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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.