CVE-2023-28311: microsoft 365_apps Heap-based Buffer Overflow

Vulnerability summary

CVE-2023-28311 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in microsoft 365_apps. EPSS estimates a 2.72% chance of exploitation in the next 30 days, higher than 85.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 11-04-2023
   PublishedVulnerability first disclosed.
2. 28-02-2025
   Last modifiedVulnerability information updated.

Description

Microsoft Word Remote Code Execution Vulnerability

• CWE-122Heap-based Buffer OverflowA 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().