Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
According to the CVSS metric, the attack vector is network (AV:N) and the attack complexity is low (AC:L). What does that mean for this vulnerability? The attack vector is Network (AV:N) because this vulnerability is remotely exploitable and can be exploited from the internet. The attack complexity is Low (AC:L) because an attacker does not require significant prior knowledge of the system and can achieve repeatable success with the payload against the vulnerable component. According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability? An authenticated attacker with Site Owner permissions can use the vulnerability to inject arbitrary code and execute this code in the context of SharePoint Server. How could an attacker exploit the vulnerability? In a network-based attack, an attacker authenticated as at least a Site Owner, could write arbitrary code to inject and execute code remotely on the SharePoint Server. Is the updates for SharePoint Enterprise Server 2016 (KB5002692) currently available? Yes. As of April 15, 2025, the security update (KB5002692) for SharePoint Enterprise Server 2016 is available. Customers running SharePoint Enterprise Server 2016 should ensure the update is installed to be protected from this vulnerability.
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