Security readout for executives and security teams
Plain-English summary
A flaw in Microsoft Teams for Android could expose sensitive information when a locally positioned, low-privileged attacker interacts with an affected device and the user participates. It does not affect data integrity or service availability. The potential confidentiality impact is high, but the required access and user interaction reduce overall urgency.
Executive priority
Schedule prompt remediation through normal mobile application management. Escalate priority for shared, high-risk, or sensitive-data devices. Emergency response is not supported by the supplied evidence because exploitation requires local conditions and no active exploitation is identified.
Technical view
CVE-2024-21374 is an input-validation weakness classified as CWE-20. Its CVSS 3.1 score is 5.0: local access, low complexity, low privileges, and user interaction are required. Successful exploitation could cause high confidentiality loss, with no identified integrity or availability impact.
Likely exposure
Exposure is limited to Microsoft Teams for Android. The bundle lists version 1.0.0, but does not establish whether that represents the complete affected range. Prioritize managed Android devices containing Teams and confirm applicability against Microsoft's advisory.
Exploitation context
The source bundle does not identify active exploitation, and CVE-2024-21374 is not listed as a known exploited vulnerability. The CVSS vector reports unproven exploit maturity. Exploitation requires local access, low privileges, and user interaction, limiting broad remote attack potential.
Researcher notes
The supplied evidence provides only the vulnerability class, product, listed version, CVSS vector, and vendor advisory. It does not describe the exposed data, vulnerable component, attack mechanism, complete version range, or exploitation observations. Validate those details directly against Microsoft's advisory before deeper assessment.
Mitigation direction
- Review Microsoft's advisory for the applicable fixed Teams for Android release.
- Update affected Teams installations through the approved enterprise or application-store channel.
- Prioritize devices handling sensitive communications or regulated information.
- Restrict local device access and enforce mobile device security controls until remediation is verified.
Validation and detection
- Inventory Teams for Android versions across managed and supported devices.
- Compare installed versions with Microsoft's affected and fixed release information.
- Verify the updated application version on a representative managed-device sample.
- Confirm mobile management reporting shows no remaining affected installations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-21374 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C1.33.6microsoftVulnerability scoring details
Base CVSS 3.1 score
5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Teams for Android Information Disclosure VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.