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.

4837 vulnerabilities reference this CWE, most recent first.

CVE-2018-15616 (GCVE-0-2018-15616)

Vulnerability from cvelistv5 – Published: 2018-10-17 19:00 – Updated: 2024-08-05 10:01
VLAI
Title
System Platform Web UI Deserialization
Summary
A vulnerability in the Web UI component of Avaya Aura System Platform could allow a remote, unauthenticated user to perform a targeted deserialization attack that could result in remote code execution. Affected versions of System Platform includes 6.3.0 through 6.3.9 and 6.4.0 through 6.4.2.
Severity
9 (Critical)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Avaya Avaya Aura® System Platform Affected: 6.3.x , ≤ 6.3.9 (custom)
Affected: 6.4.x , ≤ 6.4.2 (custom)
Create a notification for this product.
Date Public
2018-10-17 00:00
Show details on NVD website
To clipboard 

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CVE-2018-15381 (GCVE-0-2018-15381)

Vulnerability from cvelistv5 – Published: 2018-11-08 17:00 – Updated: 2024-11-26 14:22
VLAI
Title
Cisco Unity Express Arbitrary Command Execution Vulnerability
Summary
A Java deserialization vulnerability in Cisco Unity Express (CUE) could allow an unauthenticated, remote attacker to execute arbitrary shell commands with the privileges of the root user. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a malicious serialized Java object to the listening Java Remote Method Invocation (RMI) service. A successful exploit could allow the attacker to execute arbitrary commands on the device with root privileges.
Severity
9.8 (Critical)
CVSS:3.0/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 (v2.0.3)
CWE
Assigner
References
URL Tags
http://www.securitytracker.com/id/1042130 vdb-entryx_refsource_SECTRACK
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/105876 vdb-entryx_refsource_BID
Impacted products
Date Public
2018-11-07 00:00
Show details on NVD website
To clipboard 

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CVE-2018-11779 (GCVE-0-2018-11779)

Vulnerability from cvelistv5 – Published: 2019-07-25 23:23 – Updated: 2024-08-05 08:17
VLAI
Summary
In Apache Storm versions 1.1.0 to 1.2.2, when the user is using the storm-kafka-client or storm-kafka modules, it is possible to cause the Storm UI daemon to deserialize user provided bytes into a Java class.
Severity
No CVSS data available.
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://lists.apache.org/thread.html/3e4f704c4bd9… mailing-listx_refsource_MLIST
Impacted products
Vendor Product Version
Apache Storm Affected: 1.1.0 to 1.2.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2018-10911 (GCVE-0-2018-10911)

Vulnerability from cvelistv5 – Published: 2018-09-04 14:00 – Updated: 2024-08-05 07:54
VLAI
Summary
A flaw was found in the way dic_unserialize function of glusterfs does not handle negative key length values. An attacker could use this flaw to read memory from other locations into the stored dict value.
Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
Assigner
References
URL Tags
https://review.gluster.org/#/c/glusterfs/+/21067/ x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2607 vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:2608 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:3470 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2892 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:3242 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201904-06 vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2021… mailing-listx_refsource_MLIST
Impacted products
Vendor Product Version
Red Hat glusterfs: Affected: n/a
Create a notification for this product.
Date Public
2018-09-04 00:00
Show details on NVD website
To clipboard 

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CVE-2018-7529 (GCVE-0-2018-7529)

Vulnerability from cvelistv5 – Published: 2018-03-14 18:00 – Updated: 2024-08-05 06:31
VLAI
Summary
A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may modify deserialized data to send custom requests that crash the server.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a OSIsoft PI Data Archive Affected: OSIsoft PI Data Archive
Date Public
2018-03-14 00:00
Show details on NVD website
To clipboard 

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CVE-2018-6331 (GCVE-0-2018-6331)

Vulnerability from cvelistv5 – Published: 2018-12-31 23:00 – Updated: 2025-05-06 15:46
VLAI
Summary
Buck parser-cache command loads/saves state using Java serialized object. If the state information is maliciously crafted, deserializing it could lead to code execution. This issue affects Buck versions prior to v2018.06.25.01.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data (CWE-502)
Assigner
References
Impacted products
Vendor Product Version
Facebook Buck Affected: v2018.06.25.01
Affected: unspecified , ≤ v2018.06.25.01 (custom)
Create a notification for this product.
Date Public
2018-12-31 00:00
Show details on NVD website
To clipboard 

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CVE-2017-20208 (GCVE-0-2017-20208)

Vulnerability from cvelistv5 – Published: 2025-10-18 03:33 – Updated: 2026-04-08 17:20
VLAI
Title
RegistrationMagic - Custom Registration Forms <= 3.7.9.2 - PHP Object Injection
Summary
The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to fetch a remote file and install it on the site.
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: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Credits
Brad Haas
Show details on NVD website
To clipboard 

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CVE-2017-20207 (GCVE-0-2017-20207)

Vulnerability from cvelistv5 – Published: 2025-10-18 03:33 – Updated: 2026-04-08 17:17
VLAI
Title
Flickr Gallery <= 1.5.2 - Unauthenticated PHP Object Injection
Summary
The Flickr Gallery plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.5.2 via deserialization of untrusted input from the `pager ` parameter. This allows unauthenticated attackers to inject a PHP Object. Attackers were actively exploiting this vulnerability with the WP_Theme() class to create backdoors.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Dan Coulter Flickr Gallery Affected: 0 , < 1.5.3 (semver)
Create a notification for this product.
Credits
Matt Barry
Show details on NVD website
To clipboard 

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CVE-2017-20206 (GCVE-0-2017-20206)

Vulnerability from cvelistv5 – Published: 2025-10-18 03:33 – Updated: 2026-04-08 17:03
VLAI
Title
Appointments <= 2.2.1 - Unauthenticated PHP Object Injection
Summary
The Appointments plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.2.1 via deserialization of untrusted input from the `wpmudev_appointments` cookie. This allows unauthenticated attackers to inject a PHP Object. Attackers were actively exploiting this vulnerability with the WP_Theme() class to create backdoors.
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 (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
wpmudev Appointments Affected: 0 , < 2.2.2 (semver)
Create a notification for this product.
Credits
Matt Barry
Show details on NVD website
To clipboard 

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CVE-2017-17406 (GCVE-0-2017-17406)

Vulnerability from cvelistv5 – Published: 2018-01-23 01:00 – Updated: 2024-08-05 20:51
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Netgain Enterprise Manager. Authentication is not required to exploit this vulnerability. The specific flaw exists within an exposed RMI registry, which listens on TCP ports 1800 and 1850 by default. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process. Was ZDI-CAN-4753.
Severity
No CVSS data available.
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
zdi
References
Impacted products
Date Public
2017-12-13 00:00
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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