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Vulnerabilities

Vulnerability · CVE-2020-9548

fasterxml jackson-databind Deserialization of Untrusted Data

Published Jun 23, 2025 · catalog updated Jun 23, 2025 · fasterxml jackson-databind Deserialization of

Patch now

CVE-2020-9548 is in the CISA known-exploited catalog. Confirm fasterxml jackson-databind Deserialization of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (fasterxml jackson-databind Deserialization of).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
18.92%
Remediation
Remediation guidance
Affected products
vendor fasterxml jackson-databind

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor fasterxml jackson-databindversion unspecified

How to fix CVE-2020-9548

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-9548 is in the CISA known-exploited catalog. Confirm fasterxml jackson-databind Deserialization of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 18.92%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 23, 2025 · VulnCheck KEV

    Detected

    FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).

  2. Jun 23, 2025 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2020-9548

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-9548

    30-day exploitation probability 18.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2020-9548

    FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.