Important CVSS 8.8 EPSS 0.00509 2026-07 archive

Executive Summary

Use after free in DNS Server allows an authorized attacker to execute code over a network.

Overview

8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Jul 14 2026
Last Updated Jul 14 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00509 — 0.40976 percentile
NVD CVSS 8.8 HIGH — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.0

EPSS Score

0.00509
probability of exploitation in the next 30 days
0.40976 percentile - updated 2026-08-14
View on FIRST.org

Affected Products

2 affected products
Product KB Article Severity Impact Restart Required
Windows Server 2025 5099536 (Security Update) Important Remote Code Execution Yes
Windows Server 2025 (Server Core installation) 5099536 (Security Update) Important Remote Code Execution Yes

Patches

1 patch
Article Type Restart
5099536 Security Update Yes

Known Exploits

Acknowledgments

pwnky