0.0
NA
CVE-2025-27533
Apache ActiveMQ Memory Allocation with Excessive Size Value Denial of Service
Description

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected. Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue. Existing users may implement mutual TLS to mitigate the risk on affected brokers.

INFO

Published Date :

May 7, 2025, 9:15 a.m.

Last Modified :

May 7, 2025, 2:13 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2025-27533 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apache activemq
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-27533.

URL Resource
https://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg
http://www.openwall.com/lists/oss-security/2025/05/06/1

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-27533 vulnerability anywhere in the article.

  • Cyber Security News
Apache ActiveMQ Vulnerability Let Attackers Trigger DoS Condition

A significant vulnerability has been discovered in Apache ActiveMQ, the widely used open-source message broker. The flaw, officially tracked as CVE-2025-27533, enables remote attackers to trigger a De ... Read more

Published Date: May 08, 2025 (11 hours, 25 minutes ago)
CVE-2025-27533
  • Cyber Security News
Multiple SonicWall SMA 100 Vulnerabilities Let Attackers Compromise Systems

SonicWall has disclosed multiple high-severity vulnerabilities affecting its Secure Mobile Access (SMA) 100 series products. Security researchers from Rapid7 discovered three significant post-authenti ... Read more

Published Date: May 08, 2025 (11 hours, 43 minutes ago)
CVE-2025-32821 CVE-2025-32820 CVE-2025-32819 CVE-2025-27533
  • Daily CyberSecurity
CVE-2025-27533: Apache ActiveMQ Memory Allocation Bug Could Lead to Denial of Service

Privacy & Transparencysecurityonline.info and our partners ask for your consent to use your personal data, and to store and/or access information on your device. This includes using your personal data ... Read more

Published Date: May 08, 2025 (18 hours, 56 minutes ago)
CVE-2025-27533

The following table lists the changes that have been made to the CVE-2025-27533 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    May. 07, 2025

    Action Type Old Value New Value
    Added Description Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected. Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue. Existing users may implement mutual TLS to mitigate the risk on affected brokers.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:D/RE:M/U:Red
    Added CWE CWE-789
    Added Reference https://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    May. 07, 2025

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/05/06/1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-27533 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-27533 weaknesses.

NONE - Vulnerability Scoring System
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Latest DB Update: May. 08, 2025 19:16