CVE-2024-57766Public exploitNetwork attack vector

Authenticated arbitrary Java object instantiation via unfiltered tableField

Published Jan 14, 2025 · Updated Feb 3, 2025

Fastjson deserialization in wangl1989 MSFM before 2025.01.01 allows remote authenticated users to instantiate attacker-chosen Java classes. The editField handler accepts an unfiltered tableField value, allowing Fastjson @type metadata to select and instantiate the specified JdbcRowSetImpl gadget. Backend authentication and a valid session cookie are required; the published proof of concept causes the server to contact an attacker-selected RMI data source.

CVSS severity9.1
Critical
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Fastjson deserialization in wangl1989 MSFM before 2025.01.01 allows remote authenticated users to instantiate attacker-chosen Java classes. The editField handler accepts an unfiltered tableField value, allowing Fastjson @type metadata to select and instantiate the specified JdbcRowSetImpl gadget. Backend authentication and a valid session cookie are required; the published proof of concept causes the server to contact an attacker-selected RMI data source.

The record

CVE
CVE-2024-57766
Published
Jan 14, 2025
Updated
Feb 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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