Deserialization in Zend Framework

CVE-2020-29312

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.

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-29312: held from 0.013 to 0.013.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-29312?
CVE-2020-29312 is a critical-severity vulnerability in Zend Framework, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-04-04.
How severe is CVE-2020-29312?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-29312 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.