What is CVE-2023-36777?

CVE-2023-36777 is a medium-severity vulnerability in Microsoft Exchange Server 2016 Cumulative Update 23, classified under Deserialization of Untrusted Data. CVSS score: 5.7/10. Published 2023-09-12.

How severe is CVE-2023-36777?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Deserialization in Microsoft Exchange Server 2016 Cumulative Update 23

CVE-2023-36777

Microsoft Exchange Server Information Disclosure Vulnerability

Vulnerability class: Insecure Deserialization

EPSS: 0.812 (99.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C.

Affected products

Microsoft Exchange Server 2016 Cumulative Update 23 — versions 15.01.0
Microsoft Exchange Server 2019 Cumulative Update 12 — versions 15.02.0
Microsoft Exchange Server 2019 Cumulative Update 13 — versions 15.02.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

Microsoft Exchange Server Information Disclosure Vulnerability (vendor-advisory)

Frequently asked questions

What is CVE-2023-36777?: CVE-2023-36777 is a medium-severity vulnerability in Microsoft Exchange Server 2016 Cumulative Update 23, classified under Deserialization of Untrusted Data. CVSS score: 5.7/10. Published 2023-09-12.
How severe is CVE-2023-36777?: Medium severity. CVSS v3 base score is 5.7 out of 10.