CVE-2026-55009
Published Jul 14, 2026Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
- evidence mentions
- 5
- Buzz score
- 32.4
Vendor/product archive
23 CVEs tagged to microsoft / exchange_server_subscription_edition — 1 Critical, 14 High, 8 Medium, 0 Low, 0 Unrated.
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a networ…
Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a networ…
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a networ…
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a networ…
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.
Exposure of sensitive information to an unauthorized actor in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
Improper validation of syntactic correctness of input in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Improper handling of additional special element in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.
On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general…