CVE-2025-53783
High
Published: 12 August 2025
Published
12 August 2025
Modified
03 September 2025
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0041
62.0th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2025-53783 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Teams. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 38.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-24283
Vulnerability details
Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
dynamics 365 guides
≤ 907.2505.29001.0
microsoft
dynamics 365 remote assist
≤ 316.2505.28001
microsoft
teams
≤ 1.0.0.2025102802 · ≤ 7.10.1 · ≤ 25122.1207.3700.1444
microsoft
teams panels
≤ 1.0.97.2025102203
microsoft
teams phones
≤ 1.0.94.2025168802
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.