Buffer overflow in Microsoft Dynamics 365 Guides
CVE-2025-53783
Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Microsoft Dynamics 365 Guides
- Microsoft Dynamics 365 Remote Assist
- Microsoft Teams For Android — versions 1.0.0
- Microsoft Teams For Desktop — versions 1.0.0
- Microsoft Teams For iOS — versions 2.0.0
- Microsoft Teams For Mac, New Edition — versions 1.0.0.0
- Microsoft Teams
- Microsoft Teams For D365 Guides Hololens — versions 907.0000
- Microsoft Teams For D365 Remote Assist Hololens — versions 316.0000
- Microsoft Teams Panel — versions 1.0.97
Weakness classification (CWE)
Public proof-of-concept exploits
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53783 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-53783?
- CVE-2025-53783 is a high-severity vulnerability in Microsoft Dynamics 365 Guides, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-08-12.
- How severe is CVE-2025-53783?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-53783 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.