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CVE Record

CVE-2021-25657: Avaya IP Office Privilege Escalation Vulnerability

A privilege escalation vulnerability was discovered in Avaya IP Office Admin Lite and USB Creator that may potentially allow a local user to escalate privileges. This issue affects Admin Lite and USB Creator 11.1 Feature Pack 2 Service Pack 1 and earlier versions.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Avaya IP Office Admin Lite and USB Creator had a local privilege escalation flaw. Someone who already has a low-privileged account on a system running vulnerable versions could potentially gain higher privileges, putting confidentiality, integrity, and availability at risk.

Executive priority

Treat as a high-priority workstation and admin-tool remediation item, especially where Avaya administration software is installed on shared or broadly accessible systems. Business urgency is lower than internet-facing remote code execution, but local compromise could lead to full system control.

Technical view

CVE-2021-25657 is a CWE-269 privilege management issue affecting Admin Lite and USB Creator 11.1 Feature Pack 2 Service Pack 1 and earlier. CVSS 3.1 is 7.8: local access, low complexity, low privileges, no user interaction, and high impact across confidentiality, integrity, and availability.

Likely exposure

Exposure is most likely on administrator workstations or systems where Avaya IP Office Admin Lite or USB Creator is installed. The source bundle does not support treating this as a remotely reachable IP Office service vulnerability.

Exploitation context

The record requires local access and low privileges. The bundle marks KEV as false and provides no cited evidence of active exploitation. It also does not provide exploit maturity or public exploitation confirmation.

Researcher notes

The description gives the useful affected range; the bundled affected product metadata lists IP Office with version "0", which is incomplete. Do not infer appliance-level or remote exposure without vendor advisory evidence. Patch details are not included in the provided bundle.

Mitigation direction

  • Identify installations of Avaya IP Office Admin Lite and USB Creator.
  • Prioritize versions 11.1 Feature Pack 2 Service Pack 1 and earlier.
  • Check Avaya advisory guidance for fixed versions or vendor mitigations.
  • Restrict local access to systems running affected tools until remediated.
  • Remove vulnerable utilities where they are no longer operationally required.

Validation and detection

  • Inventory endpoints for Admin Lite and USB Creator installations.
  • Confirm installed version and service pack against the affected range.
  • Review local administrator membership on systems hosting these utilities.
  • Check vendor advisory 101083319 for current remediation details.
  • Document whether compensating controls limit local user access.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-269: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-25657 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2021-25657Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AvayaIP Office0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-269 · source CWE mapping

Improper Privilege Management

Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.