CVE-2026-72928: Use after free in Windows DNS allows an authorized attacker to execute code over a network.

Q: How do I fix CVE-2026-72928?

windows server 2025: upgrade to 10.0.26100.33438. Exact commands for each OS are on this page.

Q: Is CVE-2026-72928 being exploited?

CVE-2026-72928 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-72928 affect?

CVE-2026-72928 affects windows server 2025. Severity is high (CVSS 7.5). Use after free in Windows DNS allows an authorized attacker to execute code over a network.

Q: How urgent is CVE-2026-72928?

Priority 44/100. High severity; On your watchlist

This month

HIGH 7.5WATCHLISTUPGRADE

CVE-2026-72928 is a high-severity flaw (CVSS 7.5) affecting windows server 2025. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-416
Published	2026-09-08
Last modified	2026-09-16

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-09-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 18:20 UTCPublished CVE record published
2026-09-16 15:10 UTCUpdated Record last modified

microsoft windows server 2025 UPGRADE

Affected: < 10.0.26100.33438

Fixed in: 10.0.26100.33438

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-72928?

windows server 2025: upgrade to 10.0.26100.33438. Exact commands for each OS are on this page.

Is CVE-2026-72928 being exploited?

CVE-2026-72928 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-72928 affect?

CVE-2026-72928 affects windows server 2025. Severity is high (CVSS 7.5). Use after free in Windows DNS allows an authorized attacker to execute code over a network.

How urgent is CVE-2026-72928?

Priority 44/100. High severity; On your watchlist

Software pages

Windows vulnerabilities · Windows Server vulnerabilities

Related CVEs

CVE-2026-85910 MEDIUM 5.5 UPGRADE UPGRADE Buffer over-read in Windows StateRepository API allows an authorized attacker to disclose information locally.
CVE-2026-69765 HIGH 8.8 UPGRADE Use after free in Windows Storport Miniport Driver allows an unauthorized attacker to execute code over a netw
CVE-2026-69783 HIGH 7.8 UPGRADE UPGRADE External control of file name or path in Windows Update allows an authorized attacker to elevate privileges lo
CVE-2026-108457 HIGH 8.1 UPGRADE UPGRADE Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
CVE-2026-41089 CRITICAL 9.8 MITIGATE UPGRADE Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network

References

← Back to latest CVEs