CISA Updates Known Exploited Vulnerabilities Catalog with New Entry (CVE-2023-34048)

Bar Refael

January 23, 2024

Vulnerability Summary:

  • CVE Identifier: CVE-2023-34048
  • Affected Software: VMware vCenter Server
  • Type of Vulnerability: Out-of-Bounds Write Vulnerability
  • Risk to Federal Enterprise: Significant


The Cybersecurity and Infrastructure Security Agency (CISA) has recently expanded its Known Exploited Vulnerabilities Catalog by adding CVE-2023-34048, which affects VMware vCenter Server. This update comes in the wake of verified reports of active exploitation of this vulnerability. Out-of-bounds write vulnerabilities are commonly leveraged by cyber threat actors and represent a considerable threat, particularly to federal networks.

Relevance to Federal Directives:

Under Binding Operational Directive (BOD) 22-01, which focuses on mitigating the risk of known exploited vulnerabilities, this catalog serves as a dynamic repository of Common Vulnerabilities and Exposures (CVEs) that pose a substantial threat to federal entities. BOD 22-01 mandates Federal Civilian Executive Branch (FCEB) agencies to promptly address these vulnerabilities to shield their networks from imminent cyber threats. The directive emphasizes remediation by prescribed deadlines.

Advisory for All Organizations:

While BOD 22-01 specifically targets FCEB agencies, CISA strongly advises all organizations, including those in the private sector, to prioritize the resolution of these cataloged vulnerabilities. This is a critical measure in fortifying defenses against cyberattacks and maintaining robust vulnerability management practices.

Action Items for OP Innovate Clients:

  • Immediate Assessment: Review your systems to determine if they are affected by CVE-2023-34048.
  • Patch Management: Expedite the application of available patches and updates to the affected VMware vCenter Server systems.
  • Continuous Monitoring: Remain vigilant for any updates regarding this vulnerability and potential exploitation attempts.
  • Collaboration and Reporting: Engage with industry partners and relevant authorities to share information and report any incidents related to this vulnerability.

Stay safe and informed,

OP Innovate.

Under Cyber Attack?

Fill out the form and we will contact you immediately.

Under Cyber Attack?

Fill out the form and we will contact you immediately.