7.5

CVE-2023-21769: Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

Modified
Published 11-04-2023Last modified 28-02-2025

Vulnerability summary

CVE-2023-21769 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in microsoft windows_10_1607. EPSS estimates a 88.67% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities.

Overall risk
48/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
88.67%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

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

Description

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

88.67%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

No change 0.00 pp

From 88.67% on 23-09-2026

23-09-202623-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft30 products

1 vendor · 30 products

References

1 links