CVE-2026-55009 Microsoft Exchange Server Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Read at Microsoft Security Response Center
- Vendor
- Microsoft
- Product
- Exchange Server
- Exposure class
Why it ranks 26 (Notable)
- Exposed product class: email
- Widely deployed vendor product (Microsoft)
- Vendor security advisory
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- Microsoft Security Response Center (msrc.microsoft.com)
- CVE-2026-55009 on this site · NVD · CVE.org · Vulnpedia
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