CVE-2021-27576
Apache OpenMeetings: bandwidth can be overloaded with public web service
HIGH
7.5
CVSS Score
Published: March 15, 2021 at 09:05 AM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorOpenmeetings
Using Apache OpenMeetings by Apache Software Foundation?
Get instant alerts when new vulnerabilities affect Apache OpenMeetings - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 3%
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
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.0.0 ≤ v < 6.0.04.0.0 ≤ v < Apache OpenMeetings 4*Apache OpenMeetings 5 ≤ v ≤ 5.1.04.0.0Apache OpenMeetings 5
Affected range stops below 6.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below Apache OpenMeetings 4*, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (1)
x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.apache.org/thread.html/r9bb615bd70a0197368f5f3ffc887162686caeb0b5fc30592a7a871e9%40%3Cuser.openmeetings.apache.org%3ECVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card