Vendor / Project: Microsoft Product: Exchange Server Description: Microsoft Exchange Server contains a deserialization of untrusted data that allows an authenticated attacker to achieve remote code execution. Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due Date: 2026-04-27 Ransomware Campaign Use: Known CWEs: CWE-502 Notes: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529 ; https://nvd.nist.gov/vuln/detail/CVE-2023-21529
CVE-2023-21529 — Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability
Kurzinfo
Metadaten
- Original (extern): Link oeffnen
- Veroeffentlicht: 2026-04-13 00:00 UTC
- Importiert: 2026-10-20 22:46 UTC
- CVSS: 8.8
- Quelle-ID:
cisa_kev - uid_hash:
5a5727c892ae5842e053a2bf7a5f2fd0a60e2496d475e291ba64b564fe394317
Inhalt
Verknuepfte CVEs
| CVE-ID | Severity (Quelle) | CVSS (Quelle) | Severity (CVE.org) | CVSS (CVE.org) | EPSS | EPSS-Pctl | Veroeffentlicht (CVE.org) |
|---|---|---|---|---|---|---|---|
HIGH |
8.8 |
HIGH |
8.8 |
2023-02-14 |
Quellen-Details
| Bezeichnung | Name | Kategorie | Tags | Zielgruppe | Sprache | Feed-URL |
|---|---|---|---|---|---|---|
| CISA – Known Exploited Vulnerabilities (KEV) | threat_intel | cisa, kev | - | de | https://raw.githubusercontent.com/cisagov/kev-data/develop/known_exploited_vulnerabilities.json |