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Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

5346 vulnerabilities reference this CWE, most recent first.

CVE-2026-13371 (GCVE-0-2026-13371)

Vulnerability from cvelistv5 – Published: 2026-07-02 23:04 – Updated: 2026-08-27 22:58
VLAI
Title
WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization
Summary
An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 18:04 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2025.1 , < 2026.2.1 (custom)
Affected: 12.0 , < 12.12.1 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.11.9 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.19 (custom)
Create a notification for this product.
Date Public
2026-07-02 23:04
Credits
Cody Sixteen
Show details on NVD website
To clipboard 

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CVE-2026-13293 (GCVE-0-2026-13293)

Vulnerability from cvelistv5 – Published: 2026-09-14 21:07 – Updated: 2026-09-16 03:56
VLAI
Title
IBM MQ Java messaging is vulnerable to remote code execution
Summary
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote authenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284896 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM MQ Affected: 9.1.0.0 , ≤ 9.1.0.37 LTS (semver)
Affected: 9.2.0.0 , ≤ 9.2.0.43 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.0.41 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.5.1 CD (semver)
Affected: 9.4.0.0 , ≤ 9.4.0.25 LTS (semver)
Affected: 9.4.0.0 , ≤ 9.4.5.1 CD (semver)
Affected: 10.0.0.0
    cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:10.0.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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      "title": "IBM MQ Java messaging is vulnerable to remote code execution"
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CVE-2026-13190 (GCVE-0-2026-13190)

Vulnerability from cvelistv5 – Published: 2026-07-22 13:43 – Updated: 2026-07-24 03:56
VLAI
Title
PersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAX
Summary
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence utilities allows unsafe type instantiation from attacker-influenced persisted state, which can lead to remote code execution.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Progress Software Telerik UI for ASP.NET AJAX Affected: 2011.2.712 , < 2026.2.708 (custom)
Create a notification for this product.
Credits
Progress Telerik Security Team
Show details on NVD website
To clipboard 

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CVE-2026-13185 (GCVE-0-2026-13185)

Vulnerability from cvelistv5 – Published: 2026-07-22 13:38 – Updated: 2026-07-24 03:56
VLAI
Title
PersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAX
Summary
In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Progress Software Telerik UI for ASP.NET AJAX Affected: 2013.1.220 , < 2026.2.708 (custom)
Create a notification for this product.
Credits
Markus Wulftange with CODE WHITE GmbH
Show details on NVD website
To clipboard 

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CVE-2026-12787 (GCVE-0-2026-12787)

Vulnerability from cvelistv5 – Published: 2026-06-21 07:30 – Updated: 2026-06-22 17:18
VLAI
Title
zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 testConnection Endpoint deserialization
Summary
A vulnerability was found in zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 1.0.0. This affects an unknown part of the component testConnection Endpoint. The manipulation of the argument jdbcUrl results in deserialization. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 17:18 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/372529 vdb-entrytechnical-description
https://vuldb.com/vuln/372529/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12787 third-party-advisory
https://vuldb.com/submit/835654 third-party-advisory
https://ucn9h68n9289.feishu.cn/docx/I8uZdkZL3oSqB… exploit
Impacted products
Vendor Product Version
zhilink 智互联(深圳)科技有限公司 ADP Application Developer Platform 应用开发者平台 Affected: 1.0.0
    cpe:2.3:a:zhilink_:adp_application_developer_platform_:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
bigbrother_man (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-12745 (GCVE-0-2026-12745)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:22 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote unauthenticated attacker to execute arbitrary code on the server.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-12744 (GCVE-0-2026-12744)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:20 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote unauthenticated attacker to execute arbitrary code on the server.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
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CVE-2026-12651 (GCVE-0-2026-12651)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:26 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-12650 (GCVE-0-2026-12650)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:33 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-12648 (GCVE-0-2026-12648)

Vulnerability from cvelistv5 – Published: 2026-09-08 14:36 – Updated: 2026-09-09 04:26
VLAI
Summary
A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
  • CWE-502 - Deserialization of untrusted data
Assigner
References
Impacted products
Vendor Product Version
Ivanti Neurons for ITSM Unaffected: 2026.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design Implementation

If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.

Mitigation
Implementation

When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.

Mitigation
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
Architecture and Design Implementation
  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Implementation

Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.

Mitigation
Architecture and Design Implementation

Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.

Mitigation MIT-29
Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

CAPEC-586: Object Injection

An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.

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