Zend Framework
CVE-2020-29312
CRITICAL
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
An issue found in Zend Framework v.3.1.3 and before allow a remote attacker to execute arbitrary code via the unserialize function. Note: This has been disputed by third parties as incomplete and incorrect. The framework does not have a version that surpasses 2.x.x and was deprecated in early 2020.
AnalysisAI
An issue found in Zend Framework v.3.1.3 and before allow a remote attacker to execute arbitrary code via the unserialize function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. An issue found in Zend Framework v.3.1.3 and before allow a remote attacker to execute arbitrary code via the unserialize function. Note: This has been disputed by third parties as incomplete and incorrect. The framework does not have a version that surpasses 2.x.x and was deprecated in early 2020. Affected products include: Zend Zend Framework.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. 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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