Vulnerability-Lookup

oesa-2026-1607

Vulnerability from osv_openeuler

Published

2026-03-15 11:10

Modified

2026-08-06 11:10

Summary

activemq security update

Details

The most popular and powerful open source messaging and Integration Patterns server.

Security Fix(es):

A vulnerability classified as problematic has been found in Apache ActiveMQ (Application Server Software).CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.This is going to have an impact on integrity, and availability.Upgrading to version 5.19.2, 6.1.9 or 6.2.1 eliminates this vulnerability.(CVE-2025-66168)

Severity

5.4 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-66168	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "noarch": [
          "activemq-5.19.2-1.oe2403sp1.noarch.rpm",
          "activemq-javadoc-5.19.2-1.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "activemq-5.19.2-1.oe2403sp1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "activemq",
        "purl": "pkg:rpm/openEuler/activemq\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.19.2-1.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "The most popular and powerful open source messaging and Integration Patterns server.\r\n\r\nSecurity Fix(es):\n\nA vulnerability classified as problematic has been found in Apache ActiveMQ (Application Server Software).CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.This is going to have an impact on integrity, and availability.Upgrading to version 5.19.2, 6.1.9 or 6.2.1 eliminates this vulnerability.(CVE-2025-66168)",
  "id": "OESA-2026-1607",
  "modified": "2026-08-06T11:10:37Z",
  "published": "2026-03-15T11:10:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1607"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66168"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "activemq security update",
  "upstream": [
    "CVE-2025-66168"
  ]
}

CVE-2025-66168 (GCVE-0-2025-66168)

Vulnerability from cvelistv5 – Published: 2026-03-04 08:45 – Updated: 2026-04-10 10:52

Title

Apache ActiveMQ, Apache ActiveMQ All Module, Apache ActiveMQ MQTT Module: MQTT control packet remaining length field is not properly validated

Summary

WARNING: Users of 6.x should upgrade to 6.2.4 or later as the fix was missed in previous 6.x releases. See the following for more details: https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt https://www.cve.org/CVERecord?id=CVE-2026-40046 Original Report: Apache ActiveMQ does not properly validate the remaining length field which may lead to an overflow during the decoding of malformed packets. When this integer overflow occurs, ActiveMQ may incorrectly compute the total Remaining Length and subsequently misinterpret the payload as multiple MQTT control packets which makes the broker susceptible to unexpected behavior when interacting with non-compliant clients. This behavior violates the MQTT v3.1.1 specification, which restricts Remaining Length to a maximum of 4 bytes. The scenario occurs on established connections after the authentication process. Brokers that are not enabling mqtt transport connectors are not impacted. This issue affects Apache ActiveMQ: before 5.19.2, 6.0.0 to 6.1.8, and 6.2.0 Users are recommended to upgrade to version 5.19.2, 6.1.9, or 6.2.1, which fixes the issue.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-04 20:27 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

apache mitre root

References

4 references

URL	Tags
https://lists.apache.org/thread/13n8mkrb2jf2y6yyh…	vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2026-40046	related
https://activemq.apache.org/security-advisories.d…	related
http://www.openwall.com/lists/oss-security/2026/03/03/5

Impacted products

3 products

Vendor	Product	Version
Apache Software Foundation	Apache ActiveMQ	Affected: 0 , < 5.19.2 (semver) Affected: 6.0.0 , < 6.1.9 (semver) Affected: 6.2.0 , < 6.2.1 (semver)
Apache Software Foundation	Apache ActiveMQ All Module	Affected: 0 , < 5.19.2 (semver) Affected: 6.0.0 , < 6.1.9 (semver) Affected: 6.2.0 , < 6.2.1 (semver)
Apache Software Foundation	Apache ActiveMQ MQTT Module	Affected: 0 , < 5.19.2 (semver) Affected: 6.0.0 , < 6.1.9 (semver) Affected: 6.2.0 , < 6.2.1 (semver)

Credits

Gai Tanaka <641.work123@gmail.com>

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2026-03-04T09:15:41.385Z",
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                "id": "CVE-2025-66168",
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                  }
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                "role": "CISA Coordinator",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.