In the realm of cybersecurity, a single vulnerability can unleash an entire cascade of consequences. Such is the case with VMware VCenter Server, a popular platform used by organizations worldwide to manage their virtualized infrastructure. A recently discovered exploit in this critical system has raised alarms among security professionals, as it allows malicious actors to remotely execute code and potentially gain unauthorized access to sensitive information. With cyber threats evolving at an alarming rate, understanding and mitigating vulnerabilities like this one are paramount in maintaining the integrity of our digital ecosystems.

VMware vCenter Server Flaw Let Attacker Execute Remote Code:

VMware has been discovered with two vulnerabilities, CVE-2023-34048 and CVE-2023-34056, which were associated with Out-of-Bounds Write and Partial Information Disclosure. The severity of these vulnerabilities was 9.8 (Critical) and 4.3 (Medium).

Both of these vulnerabilities existed on the VMware vCenter Server, a Server Management Software for managing virtual machines, ESXi hosts, and all other components from a centralized location. 

VMware has fixed these vulnerabilities and has released a security advisory addressing these vulnerabilities. 

CVE-2023-34048: VMware Out-of-Bounds Write Vulnerability:

This vulnerability can be exploited by an attacker with network access to the vCenter Server, which could result in out-of-bounds write vulnerability, potentially leading to remote code execution. The severity of this vulnerability has been given as 9.8 (Critical).

This vulnerability has no workarounds, according to VMware’s security advisory. 

CVE-2023-34056: VMware Information Disclosure Vulnerability:

A threat actor can exploit this vulnerability with non-admin privileges to access unauthorized data. The severity for this vulnerability has been given as 4.3 (Medium). 

Affected Products:

ProductVersionCVE IdentifierCVSSv3Fixed VersionAdditional Documents
VMware vCenter Server8CVE-2023-34048,
9.8, 4.38.0U2
VMware vCenter Server8CVE-2023-340489.8
VMware vCenter Server7CVE-2023-34048,
9.8,  4.37.0U3oFAQ
VMware Cloud Foundation (VMware vCenter Server)5.x, 4.xCVE-2023-34048,
9.8, 4.3

Users of these products are recommended to upgrade to the latest versions to prevent these vulnerabilities from getting exploited.


The recent exploit in VMware vCenter Server poses a significant threat to organizations relying on this software for their virtualization needs. The ability for malicious actors to remotely execute code can lead to severe consequences, including unauthorized access to sensitive information and potential disruption of critical systems. It is crucial for organizations to promptly address this vulnerability by applying the necessary patches and updates provided by VMware. Additionally, implementing strong network security measures and regularly monitoring system activity can help mitigate the risk of future attacks. Overall, proactive measures must be taken to safeguard against such exploits and ensure the continued reliability and security of VMware vCenter Server.

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