Microsoft Microsoft Exchange Server 2019 Cumulative Update 15
45 CVEs affecting Microsoft Microsoft Exchange Server 2019 Cumulative Update 15. Latest disclosed: 2026-10-13. Critical: 4, High: 27.
| 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-2026-70279 | Critical | 9.3 | 2026-10-13 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform sp… |
CVE-2026-69356 | Critical | 9.3 | 2026-09-08 | Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform sp… |
CVE-2026-69641 | Critical | 9.1 | 2026-09-08 | Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2026-77910 | High | 8.8 | 2026-10-13 | Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2026-96940 | High | 8.8 | 2026-10-02 | Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2026-69355 | High | 8.8 | 2026-09-08 | External control of file name or path in Microsoft Exchange Server allows an authorized attacker to execute code over a network. |
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-2026-70571 | High | 8.1 | 2026-10-13 | Stack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network. |
CVE-2026-69380 | High | 8.1 | 2026-09-08 | Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. |
CVE-2026-55007 | High | 8.1 | 2026-09-08 | Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network. |
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… |