CVE-2025-49737
CVE-2025-49737 is a high-severity vulnerability in Microsoft Teams with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.
Key facts
- Severity: High (CVSS 3.x base score 7.0)
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-20540
- Weakness: CWE-362
- Affected product: Microsoft Teams
- Published:
- Last modified:
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams allows an authorized attacker to elevate privileges locally.
Frequently asked questions
- What is CVE-2025-49737?
- Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams allows an authorized attacker to elevate privileges locally.
- How severe is CVE-2025-49737?
- CVE-2025-49737 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-49737 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-49737?
- CVE-2025-49737 affects Microsoft Teams. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-49737?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-49737 have an EU (EUVD) identifier?
- Yes. CVE-2025-49737 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20540.
- When was CVE-2025-49737 published?
- CVE-2025-49737 was published on 2025-07-08 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:teams:*:*:*:*:*:macos:*:*
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