PT-2021-2735 · Microsoft · Exchange Server

Published 2021-04-13 · Updated 2026-03-17 · CVE-2021-28481

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

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

Description: The issue is related to incorrect code generation management in Microsoft Exchange Server. It allows a remote attacker to execute arbitrary code.

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

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-02269

CVE-2021-28481

Affected Products

Exchange Server

References · 17

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28481 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/663873 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-28481 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28481 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28481 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28481 · Security Note
• https://bdu.fstec.ru/vul/2021-02269 · Security Note
• https://t.me/cvenotify/13196 · Telegram Post
• https://t.me/cvenotify/13199 · Telegram Post
• https://t.me/cybersecuritytechnologies/3159 · Telegram Post
• https://t.me/cvenotify/13197 · Telegram Post
• https://t.me/ckure/7596 · Telegram Post
• https://t.me/cybersecuritytechnologies/3279 · Telegram Post
• https://cybersecurity-help.cz/vulnerabilities/52139 · Note
• https://twitter.com/pdnuclei_bot/status/2023759376373477766 · Twitter Post