Description
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.
Published: 2026-06-09
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is an injection flaw caused by improper neutralization of special elements in output that is consumed by a downstream component. An attacker who already has authorized access to Microsoft Teams for Android can cause the app to disclose sensitive data over the network. This flaw falls under CWE‑74 and results in information leakage rather than code execution or denial of service.

Affected Systems

Only Microsoft Teams for Android is impacted. No specific version range is listed in the CNA data, so any installation of the Teams Android application prior to the latest update is potentially vulnerable. Users should verify that their mobile app is up to date with the vendor's latest release.

Risk and Exploitability

The CVSS score of 8.1 indicates a high severity for confidentiality impact. The EPSS value is not available, but the vulnerability is not currently listed in CISA’s KEV catalog, suggesting that widespread exploitation has not yet been observed. A likely attack path requires an attacker to act through the Teams interface, injecting malicious content that travels to a downstream component and returns data over the network. Because the flaw is exploitable only by an authenticated user, the risk is concentrated against compromised or insider accounts.

Generated by OpenCVE AI on June 9, 2026 at 18:21 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Microsoft Teams for Android to the latest version from the official source.
  • Restrict or disable Teams features that render untrusted content if it may expose sensitive data.
  • Implement network monitoring and segmentation to detect and contain unexpected outbound data flows from the app.

Generated by OpenCVE AI on June 9, 2026 at 18:21 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 10 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 09 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.
Title Microsoft Teams for Android Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft teams
Weaknesses CWE-74
CPEs cpe:2.3:a:microsoft:teams:*:*:*:*:*:android:*:*
Vendors & Products Microsoft
Microsoft teams
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-10T12:31:24.645Z

Reserved: 2026-04-30T14:51:12.703Z

Link: CVE-2026-42835

cve-icon Vulnrichment

Updated: 2026-06-10T12:31:19.020Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T17:17:09.140

Modified: 2026-06-09T19:32:51.440

Link: CVE-2026-42835

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T19:30:11Z

Weaknesses