PT-2026-47977 · Microsoft · Exchange Server

CVE-2026-45583 · Published 2026-06-09 · Updated 2026-06-09

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Exchange Server (affected versions not specified)

Description Improper control of code generation allows an unauthorized remote attacker to execute arbitrary code over a network, potentially affecting the system. This is a code injection issue, where an attacker can introduce and execute malicious code within the application.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2026-08335

CVE-2026-45583

Affected Products

Exchange Server

References · 4

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-08335 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-45583 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-45583 · Security Note