CVE-2026-65669: Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Serv

This month

CRITICAL 9.6WATCHLISTUPGRADE

CVE-2026-65669 is a critical-severity flaw (CVSS 9.6) affecting sql server management studio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.

Why this priority

Critical severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.6 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-74
Published	2026-09-08
Last modified	2026-10-07

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 18:18 UTCPublished CVE record published
2026-10-07 14:38 UTCUpdated Record last modified

microsoft sql server management studio UPGRADE

Affected: >= 22.0 and < 22.8.2

Fixed in: 22.8.2

Safe to downgrade to: a release before 22.0

1. Check installed version

apt-cache policy sql-server-management-studio || rpm -q sql-server-management-studio || sql-server-management-studio --version

2. UPGRADE to 22.8.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sql-server-management-studio

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sql-server-management-studio

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 22.0 (Debian / Ubuntu)

apt-cache madison sql-server-management-studio sudo apt install sql-server-management-studio=<VERSION_BEFORE_22.0> sudo apt-mark hold sql-server-management-studio

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sql-server-management-studio sudo dnf downgrade sql-server-management-studio-<VERSION_BEFORE_22.0> sudo dnf versionlock add sql-server-management-studio

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-65669?

sql server management studio: upgrade to 22.8.2. Exact commands for each OS are on this page.

Is CVE-2026-65669 being exploited?

CVE-2026-65669 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-2026-65669 affect?

CVE-2026-65669 affects sql server management studio. Severity is critical (CVSS 9.6). Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.

How urgent is CVE-2026-65669?

Priority 53/100. Critical severity; On your watchlist

Software pages

Microsoft SQL Server vulnerabilities

References

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