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Vulnerability record · CVE-2021-27576 · published 15 March 2021

CVE-2021-27576: Apache openmeetings vulnerability

Apache · Openmeetings

If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings server. This issue was addressed in Apache OpenMeetings 6.0.0

7.5 CVSS 3.1 High EPSS 2.8% · top 13.8%
7.5CVSS 3.1 base score, v2 5.0
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings server. This issue was addressed in Apache OpenMeetings 6.0.0

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread.html/r9bb615bd70a0197368f5f3ffc887162686caeb0b5fc30592a7a871e9%40%3Cuser.openmeetings.ap Mailing ListVendor Advisory
https://lists.apache.org/thread.html/r9bb615bd70a0197368f5f3ffc887162686caeb0b5fc30592a7a871e9%40%3Cuser.openmeetings.ap Mailing ListVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2017-7664Apache openmeetings xml external entity (xxe) vulnerabilityUploaded XML documents were not correctly validated in Apache OpenMeetings 3.1.0.EPSS 2.3%9.8CVE-2024-54676Apache OpenMeetings OpenJPA deserialization of untrusted dataApache OpenMeetings versions from 2.1.0 before 8.0.0 ship default clustering instructions that omit OpenJPA serialization class white/black lists, al…EPSS 65%analysed9.8CVE-2023-28326Apache openmeetings missing authentication for critical function vulnerabilityVendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.0.0 before 7.0.0 Description: Attacker can elevate their privile…EPSS 1.3%9.8CVE-2016-8736Apache openmeetings deserialization of untrusted data vulnerabilityApache OpenMeetings before 3.1.2 is vulnerable to Remote Code Execution via RMI deserialization attack.EPSS 4.8%9.8CVE-2017-7673Apache openmeetings improper restriction of authentication attempts vulnerabilityApache OpenMeetings 1.0.0 uses not very strong cryptographic storage, captcha is not used in registration and forget password dialogs and auth forms …EPSS 1.6%8.8CVE-2017-7666Apache openmeetings cross-site scripting vulnerabilityApache OpenMeetings 1.0.0 is vulnerable to Cross-Site Request Forgery (CSRF) attacks, XSS attacks, click-jacking, and MIME based attacks.EPSS 0.80%8.8CVE-2017-7681Apache openmeetings sql injection vulnerabilityApache OpenMeetings 1.0.0 is vulnerable to SQL injection. This allows authenticated users to modify the structure of the existing query and leak the …EPSS 1.3%8.2CVE-2017-7682Apache openmeetings vulnerabilityApache OpenMeetings 3.2.0 is vulnerable to parameter manipulation attacks, as a result attacker has access to restricted areas.EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2021-27576), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.