Cyber Resilience

CVE-2024-38197

Microsoft Teams ≤ 6.19.2

Published
13 August 2024
Modified
22 October 2024
Patch / advisory
View advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.16 97th percentile
Risk Priority 62 floored blend · peak EPSS

Summary

CVE-2024-38197 is a medium-severity User Interface (UI) Misrepresentation of Critical Information (CWE-451) vulnerability in Microsoft Teams. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked in the top 3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Microsoft Teams for iOS contains a spoofing vulnerability tracked as CVE-2024-38197. The flaw is associated with CWE-451 and carries a CVSS 3.1 base score of 6.5 reflecting network attack vector, low complexity, no required privileges or user interaction, and limited impacts to confidentiality and integrity.

An unauthenticated attacker can exploit the issue remotely to spoof content or identity within the application, resulting in partial disclosure or alteration of information presented to users. The EPSS score has remained flat at a peak of 0.1109 since disclosure with no material upward trajectory observed.

The official advisory published by Microsoft at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38197 contains the authoritative guidance for affected builds and any available remediation steps. No public reports of active exploitation have been noted in the provided data.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

Microsoft Teams for iOS Spoofing Vulnerability

CWE(s)
CWE-451NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
T1566.002 Spearphishing Link Initial Access
Adversaries may send spearphishing emails with a malicious link in an attempt to gain access to victim systems.
attack.mitre.org →
T1566.003 Spearphishing via Service Initial Access
Adversaries may send spearphishing messages via third-party services in an attempt to gain access to victim systems.
attack.mitre.org →
T1598 Phishing for Information Reconnaissance
Adversaries may send phishing messages to elicit sensitive information that can be used during targeting.
attack.mitre.org →
T1598.003 Spearphishing Link Reconnaissance
Adversaries may send spearphishing messages with a malicious link to elicit sensitive information that can be used during targeting.
attack.mitre.org →
T1534 Internal Spearphishing Lateral Movement
After they already have access to accounts or systems within the environment, adversaries may use internal spearphishing to gain access to additional information or compromise other users within the same organization.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-45650Same vendor: Microsoft
CVE-2024-49040Same vendor: Microsoft
CVE-2024-43461Same vendor: Microsoft
CVE-2025-62224Same vendor: Microsoft
CVE-2023-24881Same product: Microsoft Teams
CVE-2026-40416Same vendor: Microsoft
CVE-2024-38093Same vendor: Microsoft
CVE-2025-64667Same vendor: Microsoft
CVE-2023-29330Same product: Microsoft Teams
CVE-2025-29796Same vendor: Microsoft

Affected Assets

microsoft
teams
≤ 6.19.2

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly address design and implementation of accurate, non-spoofable UI elements.

PR.AT-01 partial match
prevents

User awareness training helps people recognize and avoid harm from UI misrepresentation such as phishing, but does not prevent the flaw itself.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect UI misrepresentation vulnerabilities before deployment.

A.6.3 Information security awareness, education and training partial match
prevents

Security awareness training can teach users to recognize UI misrepresentation and phishing attempts.

A.8.23 Web filtering partial match
mitigates

Web filtering can block known phishing sites that exploit UI misrepresentation.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle includes UI/UX security requirements that can prevent misrepresentation of critical information.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate proper display and validation of critical information in the UI.

A.8.28 Secure coding partial match
prevents

Secure coding practices can prevent UI flaws that obscure or spoof critical information.

References