Deserialization in Fasterxml Jackson-databind

CVE-2020-9547

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to com.ibatis.sqlmap.engine.transaction.jta.JtaTransactionConfig (aka ibatis-sqlmap).

Vulnerability class: Insecure Deserialization

EPSS: 0.187 (96.9th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-9547?
CVE-2020-9547 is a critical-severity vulnerability in Fasterxml Jackson-databind, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-03-02.
How severe is CVE-2020-9547?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-9547 known to be exploited?
50 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.