Microsoft Exchange Server Subscription Edition
30 CVEs affecting Microsoft Exchange Server Subscription Edition. Latest disclosed: 2026-08-11. Critical: 1, High: 18.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2026-55008 | Critical | 9.6 | 2026-07-14 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform sp… |
CVE-2026-62913 | High | 8.8 | 2026-08-11 | Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network. |
CVE-2026-55005 | High | 8.8 | 2026-07-14 | Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network. |
CVE-2026-45504 | High | 8.8 | 2026-06-09 | Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2025-59249 | High | 8.8 | 2025-10-14 | Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2025-53782 | High | 8.4 | 2025-10-14 | Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally. |
CVE-2026-47631 | High | 8.1 | 2026-06-09 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform sp… |
CVE-2026-45503 | High | 8.1 | 2026-06-09 | Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network. |
CVE-2026-42897 | High | 8.1 | 2026-05-14 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform sp… |
CVE-2026-62911 | High | 8.0 | 2026-08-11 | Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2025-53786 | High | 8.0 | 2025-08-06 | On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these cha… |
CVE-2026-55009 | High | 7.8 | 2026-07-14 | Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally. |
CVE-2026-55006 | High | 7.8 | 2026-07-14 | Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally. |
CVE-2026-45583 | High | 7.5 | 2026-06-09 | Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network. |
CVE-2025-64666 | High | 7.5 | 2025-12-09 | Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2025-59248 | High | 7.5 | 2025-10-14 | Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network. |
CVE-2025-33051 | High | 7.5 | 2025-08-12 | Exposure of sensitive information to an unauthorized actor in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network. |
CVE-2026-62914 | High | 7.3 | 2026-08-11 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an authorized attacker to perform spoo… |
CVE-2026-62910 | High | 7.2 | 2026-08-11 | Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2026-65813 | Medium | 6.5 | 2026-08-11 | Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |