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Vulnerability record · CVE-2017-3201 · published 11 June 2018

CVE-2017-3201: Exadel flamingo amf-serializer deserialization of untrusted data vulnerability

Exadel · Flamingo Amf Serializer

The Java implementation of AMF3 deserializers used in Flamingo amf-serializer by Exadel, version 2.2.0 derives class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized.

8.1 CVSS 3.0 High EPSS 5.4% · top 7.6% CWE-502 · Deserialization of untrusted data
8.1CVSS 3.0 base score, v2 6.8
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The Java implementation of AMF3 deserializers used in Flamingo amf-serializer by Exadel, version 2.2.0 derives class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/97380 Third Party AdvisoryVDB Entry
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution Third Party Advisory
https://codewhitesec.blogspot.com/2017/04/amf.html ExploitThird Party Advisory
https://www.kb.cert.org/vuls/id/307983 Third Party Advisory
http://www.securityfocus.com/bid/97380 Third Party AdvisoryVDB Entry
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution Third Party Advisory
https://codewhitesec.blogspot.com/2017/04/amf.html ExploitThird Party Advisory
https://www.kb.cert.org/vuls/id/307983 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-3201), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.