CVE-2026-65669

CRITICAL 9.6 ALL-YEARS

Published 2026-09-08 · Last modified 2026-10-14 · microsoft · NVD: Analyzed

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.

ELEVATED IMPACT

Severe if exploited (CVSS 9.6), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.9%chance of exploitation in 30 days · 58th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

9.6CVSS 3.1 · CRITICAL · CNA

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

What an attacker needs

✓Access: Reachable over the network — no local access needed
✓Privileges: No account or privileges required
⚠User interaction: A user must take an action (click / open a file)
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

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Affected

Vendors Microsoft

Products Sql Server Management Studio 22 Sql Server Management Studio

Weakness (CWE)

CWE-74: : Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Microsoft	Sql Server Management Studio	≥ 22.0 and < 22.8.2

All CVSS metrics

CRITICAL 9.6 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CRITICAL 9.6 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Patches & mitigations

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65669 vendor-advisorypatchPatchVendor AdvisoryCVE record · microsoft · Updated 2026-10-14T23:09:08.222Z
NVD · CVE-2026-65669 · Updated 2026-10-07T14:38:03.067

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73320 ADVISORYEUVD · EUVD-2026-73320

Sources: NVD · CVE.org · All sources and attribution · EPSS