What is the CVSS score of CVE-2025-36149?

CVE-2025-36149 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-36149?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Concert CVE-2025-36149

MEDIUM

Improper Restriction of Rendered UI Layers or Frames (CWE-1021)

2025-11-21 psirt@us.ibm.com

XSS IBM Concert

5.4

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-1021 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V3 - Web Frontend Security Clickjacking prevention, X-Frame-Options
Impact	CVSS score of 6.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.06%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

IBM Concert Software 1.0.0 through 2.0.0 could allow a remote attacker to hijack the clicking action of the victim. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-1021. IBM Concert Software 1.0.0 through 2.0.0 could allow a remote attacker to hijack the clicking action of the victim. Affected products include: Ibm Concert. Version information: through 2.0.0.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVSS changed

Oct 08, 2026 - 10:22 NVD

6.3 (MEDIUM) 5.4 (MEDIUM)

CVE Published

Nov 21, 2025 - 20:15 nvd

MEDIUM 6.3

DescriptionNVD

IBM Concert Software 1.0.0 through 2.0.0 could allow a remote attacker to hijack the clicking action of the victim.

Executive ViewAI

Why It Matters

CVE-2025-36149 presents moderate security risk rated CVSS 6.3. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 82% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +27

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)NVD

cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:*

More in Concert

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9.8 Sep 23

Unauthenticated remote code execution in IBM Concert 1.0.0 through 3.0.0 lets any attacker who can reach the service sen

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9.8 Sep 23

Use-after-free in IBM Concert 1.0.0 through 3.0.0 lets an attacker who can influence program input or execution flow cor

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9.8 Nov 19

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9.8 Oct 22

IBM Concert 1.0.0 and 1.0.1 vulnerable to attacks that rely on the use of cookies without the SameSite attribute. Rated

CVE-2026-17472 CRITICAL Act Now

9.6 Sep 22

Improperly scoped role-based access control in IBM Concert 1.0.0 through 3.0.0 lets any authenticated user holding even

CVE-2026-3627 CRITICAL Act Now

9.1 Aug 28

SQL injection in IBM Concert versions 1.0.0 through 2.3.1 allows remote attackers to inject specially crafted SQL statem

CVE-2025-33015 HIGH This Week

8.8 Jan 20

Concert versions up to 2.1.0 is affected by unrestricted upload of file with dangerous type (CVSS 8.8).

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8.8 Nov 19

IBM Concert Software 1.0.0, 1.0.1, 1.0.2, and 1.0.2.1 could allow an authenticated user to perform unauthorized actions

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7.8 Sep 23

Improper bounds checking in IBM Concert 1.0.0 through 3.0.0 lets a local, authenticated user supply overlong input that

CVE-2025-12771 HIGH This Week

7.8 Dec 26

Local code execution in IBM Concert 1.0.0 through 2.1.0 allows an authenticated attacker to overflow a stack buffer and

CVE-2026-6935 HIGH This Week

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Local privilege escalation in IBM Concert 1.0.0 through 3.0.0 lets an attacker who already holds a low-privileged accoun

CVE-2026-6794 HIGH This Week

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Heap memory corruption in IBM Concert 1.0.0 through 3.0.0 lets an attacker who already has low-privileged local access t

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References

Advisories & patches

ADVISORY https://www.ibm.com/support/pages/node/7252019

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GitHub PoC

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