Buffer overflow in Microsoft Exchange_server

CVE-2017-8538

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 15…

Vulnerability class: Buffer Overflow

EPSS: 0.626 (98.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-8538?
CVE-2017-8538 is a high-severity vulnerability in Microsoft Exchange_server, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-05-26.
How severe is CVE-2017-8538?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2017-8538 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.