SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-25653

A privilege escalation vulnerability was discovered in Avaya Aura Appliance Virtualization Platform Utilities (AVPU) that may potentially allow a local user to escalate privileges.

HIGH 7.8EPSS 0.64%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A privilege escalation vulnerability was discovered in Avaya Aura Appliance Virtualization Platform Utilities (AVPU) that may potentially allow a local user to escalate privileges. Affects 8.0.0.0 through 8.1.3.1 versions of AVPU.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.64% probability · 50th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-250
Affected
avaya/aura appliance virtualization platform
Source
securityalerts@avaya.com
EPSS trend
0%3%5%26 October 2026: 0.64%26 October 202626 October 2026

EPSS 0.6% 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.