Skip to content
Fencer Intel
high 8.1

CVE-2017-3200 json

The implementation of Action Message Format (AMF3) deserializers in GraniteDS, version 3.1.1.GA, may allow instantiation of arbitrary classes due to improper code control

published 2018-06-11 8 y ago modified 2026-06-17 4 mo ago also GHSA-vx9j-rvmj-jc32 , EUVD-2022-5452

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.0%
EPSS 6.0% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The Java implementation of AMF3 deserializers used in GraniteDS, version 3.1.1.G, may allow instantiation of arbitrary classes via their public parameter-less constructor and subsequently call arbitrary Java Beans setter methods. The ability to exploit this vulnerability depends on the availability of classes in the class path that make use of deserialization. A remote attacker with the ability to spoof or control information may be able to send serialized Java objects with pre-set properties that result in arbitrary code execution when deserialized.

Exploit prediction

6.04% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • codewhitesec.blogspot.com https://codewhitesec.blogspot.com/2017/04/amf.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.graniteds:granite-server-core
<=3.1.1.GA
no fix listed

Affected products

  • GraniteDS Framework

Classification

Weakness
  • CWE-913 Improper Control of Dynamically-Managed Code Resources
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.