CVE-2025-54539 json
Apache ActiveMQ NMS AMQP Client: Deserialization of Untrusted Data
published 2025-10-16 12 mo ago modified 2026-10-09 30 d ago also GHSA-4mjw-xr5x-prpc , EUVD-2025-34726
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
A Deserialization of Untrusted Data vulnerability exists in the Apache ActiveMQ NMS AMQP Client.
This issue affects all versions of Apache ActiveMQ NMS AMQP up to and including 2.3.0, when establishing connections to untrusted AMQP servers. Malicious servers could exploit unbounded deserialization logic present in the client to craft responses that may lead to arbitrary code execution on the client side.
Although version 2.1.0 introduced a mechanism to restrict deserialization via allow/deny lists, the protection was found to be bypassable under certain conditions.
In line with Microsoft’s deprecation of binary serialization in .NET 9, the project is evaluating the removal of .NET binary serialization support from the NMS API entirely in future releases.
Mitigation and Recommendations: Users are strongly encouraged to upgrade to version 2.4.0 or later, which resolves the issue. Additionally, projects depending on NMS-AMQP should migrate away from .NET binary serialization as part of a long-term hardening strategy.
Patch / fix
- nuget Apache.NMS.AMQP 2.4.0
- apache activemq_nms_amqp 2.4.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 12 mo ago
Exploit prediction
2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Apache.NMS.AMQP | <2.4.0 |
2.4.0 |
Affected products
- Apache Software Foundation Apache ActiveMQ NMS AMQP Client
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
lists.apache.org
/thread/9k684j07ljrshy3hxwhj5m0xjmkz1g2n
vendor-advisory, web, mailing-list
-
openwall.com
/lists/oss-security/2025/10/15/3
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-54539
advisory
-
github.com
/apache/activemq-nms-amqp
package
Sources
- CVE List CVE-2025-54539
- GitHub Advisory GHSA-4mjw-xr5x-prpc
- NVD CVE-2025-54539
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