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

Exp

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.

Published: 2022-09-02 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-25657 is rated Exploit Available (51.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.25%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-25657

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-25657

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.11% 0.25% +0.14%
2 2025-11-21 0.04% 0.11% +0.07%
3 2025-11-18 — 0.04% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-25657

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2021-25657

Affected software / configurations for CVE-2021-25657

Vendor Product Version Raw CPE
avaya ip_office < 11.1 cpe:2.3:a:avaya:ip_office:*:*:*:*:*:*:*:*
avaya ip_office 11.1 cpe:2.3:a:avaya:ip_office:11.1:-:*:*:*:*:*:*
avaya ip_office 11.1 cpe:2.3:a:avaya:ip_office:11.1:feature_pack1:*:*:*:*:*:*
avaya ip_office 11.1 cpe:2.3:a:avaya:ip_office:11.1:feature_pack1_service_pack1:*:*:*:*:*:*
avaya ip_office 11.1 cpe:2.3:a:avaya:ip_office:11.1:feature_pack2:*:*:*:*:*:*
avaya ip_office 11.1 cpe:2.3:a:avaya:ip_office:11.1:feature_pack2_service_pack1:*:*:*:*:*:*

References for CVE-2021-25657

cvelogic Threat Intelligence