8.8

CVE-2026-55005

Medienbericht

Microsoft Exchange Server Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
MicrosoftExchange Server Version2016 Updatecumulative_update_23
MicrosoftExchange Server Version2019 Updatecumulative_update_14
MicrosoftExchange Server Version2019 Updatecumulative_update_15
MicrosoftExchange Server Subscription Edition Version < 15.02.2562.045
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.66% 0.48
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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VulnDex Intel
Media Report
14.07.2026 20:08
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55005
Vendor Advisory