Debian Linux
CVE-2016-4000
CRITICAL
GHSA-6r7r-jj8h-pq6v
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1Blast Radius
ecosystem impact- 16 maven packages depend on org.python:jython (7 direct, 9 indirect)
- 41 maven packages depend on org.python:jython-standalone (13 direct, 28 indirect)
Ecosystem-wide dependent count for version 2.7.1b3 and other introduced versions.
DescriptionCVE.org
Jython before 2.7.1rc1 allows attackers to execute arbitrary code via a crafted serialized PyFunction object.
AnalysisAI
Jython before 2.7.1rc1 allows attackers to execute arbitrary code via a crafted serialized PyFunction object. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 12.5%.
Technical ContextAI
This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. Jython before 2.7.1rc1 allows attackers to execute arbitrary code via a crafted serialized PyFunction object. Affected products include: Jython Project Jython, Debian Debian Linux. Version information: before 2.7.1.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.
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External POC / Exploit Code
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