CVE-2026-45504
Microsoft Exchange Server Elevation of Privilege Vulnerability
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.8EPSS 0.5%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
09 Jun 2026Published on NVD
24 Jun 2026Public PoC
Recommendation: Plan a near-term fix — a public PoC already exists.
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14Microsoft · Microsoft Exchange Server 2019 Cumulative Update 15Microsoft · Microsoft Exchange Server Subscription Edition RTMpublic PoCs found — 1
githubgithub.com/hawktrace/CVE-2026-45504★ 51⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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