Is CVE-2023-34048 actively exploited?

Yes. CVE-2023-34048 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-34048 be exploited remotely?

The attack vector of CVE-2023-34048 has not been classified yet.

What is the CVSS score of CVE-2023-34048?

CVE-2023-34048 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2023-34048

HIGHCISA KEVIN THE WILD

CVE-2023-34048

Published: January 22, 2024

EPSS:93.06%probability of exploitation in 30 daysPercentile:99.8th

Official Description

VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol that allows an attacker to conduct remote code execution.

NVD Source

CISA KEV Advisory

VMware vCenter Server Out-of-Bounds Write Vulnerability

VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol that allows an attacker to conduct remote code execution.

Added to KEV: 2024-01-22Federal patch deadline: 2024-02-12

Required Action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Risk Analysis

VMware vCenter Server contains an out-of-bounds write vulnerability in its DCERPC protocol implementation, which can lead to remote code execution. With an EPSS score of 0.93065, this vulnerability has a very high likelihood of exploitation. Its presence in CISA's KEV catalog confirms it is actively being exploited in real-world attacks.

This vulnerability is actively exploited in the wild, indicating an immediate and severe threat to affected VMware vCenter Server instances. The flaw is remotely exploitable, allowing attackers to execute code without direct access.

Recommended Action

Apply the latest security patches and updates provided by VMware for vCenter Server immediately. Restrict network access to vCenter Server management interfaces to trusted sources only.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-34048 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-34048 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.