SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-27576

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

HIGH 7.5EPSS 2.84%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.84%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
2.84% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apache/openmeetings
Source
security@apache.org
EPSS trend
0%3%5%26 October 2026: 2.84%26 October 202626 October 2026

EPSS 2.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.