What is CVE-2016-5019?

CVE-2016-5019 is a critical-severity vulnerability in Apache Myfaces Trinidad, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2016-10-03.

How severe is CVE-2016-5019?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-5019 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Myfaces Trinidad

CVE-2016-5019

CoreResponseStateManager in Apache MyFaces Trinidad 1.0.0 through 1.0.13, 1.2.x before 1.2.15, 2.0.x before 2.0.2, and 2.1.x before 2.1.2 might allow attackers to conduct deserialization attacks via a crafted serialized view state string.

Vulnerability class: Insecure Deserialization

Published 2016-10-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.080 (94.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000

Affected products

Apache Myfaces Trinidad

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

mail-archives.apache.org/mod_mbox/myfaces-users/201609.mbox/<CAM1yOjYM+EW3mLUfX… (Vendor Advisory, mailing-list, Mailing List)
www.securityfocus.com/bid/93236 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1037633 (VDB Entry, Third Party Advisory, vdb-entry)
www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html (Patch)
www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html (Patch)
www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html (Patch)
www.oracle.com/security-alerts/cpujul2020.html
www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html (Patch)
www.oracle.com/security-alerts/cpujan2020.html
www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html (Patch)

Frequently asked questions

What is CVE-2016-5019?: CVE-2016-5019 is a critical-severity vulnerability in Apache Myfaces Trinidad, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2016-10-03.
How severe is CVE-2016-5019?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-5019 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.