This vulnerability allows remote attackers to bypass authentication on affected installations of Microsoft Exchange. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-62911.
ZDI-26-534: (Pwn2Own) Microsoft Exchange Capture-Replay Authentication Bypass Vulnerability
Kurzinfo
Metadaten
- Original (extern): Link oeffnen
- Veroeffentlicht: 2026-08-11 05:00 UTC
- Importiert: 2026-09-23 21:14 UTC
- CVSS: 8.0
- Quelle-ID:
zdi_pub - uid_hash:
463a74b8c2e909eb623f29d8c99ffcb96c4f3a0506bde2cc4334c0a0a21d1dc6
Inhalt
Verknuepfte CVEs
| CVE-ID | Severity (Quelle) | CVSS (Quelle) | Severity (CVE.org) | CVSS (CVE.org) | EPSS | EPSS-Pctl | Veroeffentlicht (CVE.org) |
|---|---|---|---|---|---|---|---|
HIGH |
8 |
HIGH |
8 |
2026-08-11 |
Quellen-Details
| Bezeichnung | Name | Kategorie | Tags | Zielgruppe | Sprache | Feed-URL |
|---|---|---|---|---|---|---|
| Zero Day Initiative (Published) | threat_intel | - | de | https://www.zerodayinitiative.com/rss/published/ |