What is the CVSS score of EUVD-2025-210911?

EUVD-2025-210911 has a CVSS 3.1 base score of 3.7 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.3%.

Is there a patch available for EUVD-2025-210911?

Yes, a patch is available for EUVD-2025-210911. Update the affected software to the latest version immediately.

Wso2 Identity Server EUVD-2025-210911

| CVE-2025-13166 LOW

Observable Discrepancy (CWE-203)

2026-09-15 WSO2

GHSA-xwj5-m236-f9hp

Information Disclosure Wso2 Identity Server Wso2

3.7

CVSS 3.1 · Vendor: WSO2

View

Vulnerability Assessment

Weakness

CWE

CWE-203

ASVS 5.0

V6 - Authentication Timing-safe comparisons

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

WSO2 Identity Server exposes a user-enumeration weakness in its SMS OTP login flow: the error messages returned when the OTP challenge is initiated differ depending on whether the supplied account exists, giving unauthenticated remote attackers a way to confirm valid usernames. The signal is strongest for accounts that have no mobile number registered, which produce a distinct response. No public exploit code or CISA KEV entry was identified at time of analysis, and the CVSS 3.1 score is only 3.7 — the practical value to an attacker is the harvested username list, which feeds later brute-force and social-engineering campaigns rather than yielding direct compromise.

Affected VersionsENISA

WSO2 Identity Server 7.2.0 <7.2.0.2

WSO2 Identity Server 7.1.0 <7.1.0.40

Affected Packages

euvd wso2_identity_server fix: 7.1.0.40, 7.2.0.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (WSO2) PRIMARY 3.7 LOW

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

Primary rating from Vendor (WSO2) · only source for this CVE.

CVSS VectorVendor: WSO2

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Patch available

Sep 15, 2026 - 11:16 EUVD

DescriptionCVE.org

The SMS OTP flow fails to adequately handle error messages, allowing an attacker to infer the existence of registered user accounts based on the responses received during the OTP initiation process.

This weakness can be exploited by an attacker to discover valid usernames within the system. The impact is amplified for accounts that have not configured a mobile number, as the enumeration is specifically tied to this condition. The discovery of these usernames can facilitate subsequent brute force attacks, social engineering attempts, and information leakage, potentially leading to reputational damage, loss of customer trust, and regulatory non-compliance.

Threat Intelligence Overview

EPSS Score

0.3%

Top 81% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Low

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +18

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.