CVE-2025-52287Public exploitNetwork attack vector

Limited code execution via crafted object chain

Published Aug 22, 2025 · Updated Aug 22, 2025

Deserialization in OperaMasks SDK ELite Script Engine 0.5.0 allows remote attackers to invoke arbitrary methods through crafted objects. A crafted Hashtable reaches ThisObject.equals during ObjectInputStream.readObject, then resolves an attacker-chosen class method through ELite closures. A server must include ELite and expose a deserialization interface; the published chain can invoke methods remotely, but it does not control their parameters.

CVSS severity8.8
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in OperaMasks SDK ELite Script Engine 0.5.0 allows remote attackers to invoke arbitrary methods through crafted objects. A crafted Hashtable reaches ThisObject.equals during ObjectInputStream.readObject, then resolves an attacker-chosen class method through ELite closures. A server must include ELite and expose a deserialization interface; the published chain can invoke methods remotely, but it does not control their parameters.

The record

CVE
CVE-2025-52287
Published
Aug 22, 2025
Updated
Aug 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

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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