CVE-2021-25651

Local privilege escalation via undisclosed mechanism

Published Jun 24, 2021 · Updated Aug 3, 2024

Privilege escalation in Avaya Aura Utility Services 7.x allows local users to gain elevated privileges via an undisclosed flaw. Avaya has not published the affected component or the incorrect operation that permits the privilege-boundary crossing. Local access is required, and successful exploitation grants higher privileges with resulting control over protected appliance resources.

CVSS severity8.0
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Avaya Aura Utility Services 7.x allows local users to gain elevated privileges via an undisclosed flaw. Avaya has not published the affected component or the incorrect operation that permits the privilege-boundary crossing. Local access is required, and successful exploitation grants higher privileges with resulting control over protected appliance resources.

The record

CVE
CVE-2021-25651
Published
Jun 24, 2021
Updated
Aug 3, 2024
Vendor
Avaya
Product
Avaya Aura Utility Services
Classifications
CWE-250, CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.0.0 <=7.1.3.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Avaya · Avaya Aura Utility Servicesversion=7.0.0.0 <=7.1.3.8

Published CVSS scores

8.0Avaya, Inc.CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-250Execution with Unnecessary Privileges
CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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