7.8

CVE-2023-28285: microsoft 365_apps Use After Free

CVSS: 7.8v3.1HighModified
Published 11-04-2023Last modified 28-02-2025
Open JSON

Vulnerability summary

CVE-2023-28285 is a high (CVSS 7.8) Use After Free vulnerability in microsoft 365_apps. EPSS estimates a 3.01% chance of exploitation in the next 30 days, higher than 87.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
3.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

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

Description

Microsoft Office Remote Code Execution Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

3.01%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.01% on 21-09-2026

21-09-202621-10-2026
EPSS score
3.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaseremotemultipleUnverified

    Microsoft 365 MSO (Version 2305 Build 16.0.16501.20074) 64-bit - Remote Code Execution (RCE)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Microsoft6 products

1 vendor · 6 products

References

3 links