Deserialization in Fasterxml Jackson-Databind

CVE-2020-8840

FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by org.apache.xbean.propertyeditor.JndiConverter.

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: 0.266 (98.0th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.0% 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-2020-8840: held from 0.266 to 0.266.

EPSS over last 30 days · oldest: 0.266 · newest: 0.266 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-8840?
CVE-2020-8840 is a critical-severity vulnerability in Fasterxml Jackson-Databind, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-02-10.
How severe is CVE-2020-8840?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-8840 known to be exploited?
58 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.