CVE-2026-21262
SQL Server Elevation of Privilege Vulnerability
Description
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
INFO
Published Date :
March 10, 2026, 6:18 p.m.
Last Modified :
March 11, 2026, 1:53 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-21262
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Enforce least privilege access controls.
- Apply SQL Server security updates promptly.
- Monitor access logs for suspicious activity.
- Configure network access controls.
Public PoC/Exploit Available at Github
CVE-2026-21262 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-21262.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-21262 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-21262
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Report Template
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-21262 vulnerability anywhere in the article.
-
Help Net Security
Microsoft patches 80+ vulnerabilities, six flagged as “more likely” to be exploited
On March 2026 Patch Tuesday, Microsoft addressed 80+ vulnerabilities affecting its software and cloud services. Of these, two were publicly disclosed, but not actively exploited. Privilege escalation ... Read more
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Hackread - Cybersecurity News, Data Breaches, AI and More
Microsoft Fixes 79 Flaws in March Patch Tuesday, Including Two 0-Days
Microsoft has released its March 2026 Patch Tuesday security updates, addressing dozens of vulnerabilities across Windows, enterprise platforms, and developer frameworks. The monthly update resolves 7 ... Read more
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The Hacker News
Microsoft Patches 84 Flaws in March Patch Tuesday, Including Two Public Zero-Days
Microsoft on Tuesday released patches for a set of 84 new security vulnerabilities affecting various software components, including two that have been listed as publicly known. Of these, eight are rat ... Read more
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The Cyber Express
Microsoft Patch Tuesday March 2026: Two Zero-Days and Critical RCE Bugs Fixed
The Microsoft Patch Tuesday March 2026 release introduces security updates addressing 79 vulnerabilities, including two publicly disclosed zero-day vulnerabilities and several high-risk issues tied to ... Read more
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CrowdStrike.com
March 2026 Patch Tuesday: Eight Critical Vulnerabilities and Two Publicly Disclosed Among 82 CVEs Patched
Microsoft has addressed 82 vulnerabilities in its March 2026 security update release. These include two publicly disclosed vulnerabilities and eight Critical vulnerabilities. This month's leading risk ... Read more
-
CybersecurityNews
Microsoft SQL Server Zero-Day Vulnerability Allows Attackers to Escalate Privileges
Microsoft has disclosed a critical zero-day vulnerability in SQL Server that allows authenticated attackers to escalate their privileges to the highest administrative level on affected database system ... Read more
-
Daily CyberSecurity
Microsoft Patch Tuesday March 2026: 93 Vulnerabilities Addressed, Including Two Zero-Days
The March 2026 edition of Microsoft Patch Tuesday has arrived, bringing a massive wave of security updates to protect enterprise and consumer environments. This month, Microsoft has addressed a total ... Read more
-
TheCyberThrone
Microsoft Patch Tuesday – March 2026
Released: March 10, 2026Executive SummaryMicrosoft’s March 2026 Patch Tuesday addresses 83 vulnerabilities across Windows, Microsoft Office, SQL Server, Azure cloud services, and .NET — with 8 rated C ... Read more
-
The Register
Critical Microsoft Excel bug weaponizes Copilot Agent for zero-click information disclosure attack
After a whopper of a Patch Tuesday last month, with six Microsoft flaws exploited as zero-days, March didn't exactly roar in like a lion. Just two of the 83 Microsoft CVEs released on Tuesday are list ... Read more
The following table lists the changes that have been made to the
CVE-2026-21262 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added Description Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-284 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21262