**Source : Help Net Security | 5 octobre 2026** Microsoft has pushed out an out-of-band security update for Exchange Server that fixes a high-severity vulnerability (CVE-2026-96940) that may allow authenticated attackers to read emails and attachments of other users in the same organization, but “does not allow access across tenant boundaries.” CVE-2026-96940 was discovered internally and, according to the Exchange Server Team, they... 👉 **Lire l'article complet sur Help Net Security :** [https://www.helpnetsecurity.com/2026/10/05/exchange-server-vulnerability-cve-2026-96940/](https://www.helpnetsecurity.com/2026/10/05/exchange-server-vulnerability-cve-2026-96940/)