CVE-2026-62903

Microsoft.Data.SqlClient Information Disclosure Vulnerability

Published Nov 10, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network.
Title Microsoft.Data.SqlClient Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft microsoft Data Sqlclient 6 1
Microsoft microsoft Data Sqlclient 7 0
Microsoft microsoft Data Sqlclient 7 1
Weaknesses CWE-294
CPEs cpe:2.3:a:microsoft:microsoft_data_sqlclient_6_1:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_data_sqlclient_7_0:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_data_sqlclient_7_1:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft microsoft Data Sqlclient 6 1
Microsoft microsoft Data Sqlclient 7 0
Microsoft microsoft Data Sqlclient 7 1
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 12, 2026, 9:42 PM
Reserved
Jul 14, 2026, 9:25 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 7:21 PM
Modified
Nov 11, 2026, 2:17 AM