CVE-2026-62903

HIGH

Published Nov 10, 2026 Modified Nov 11, 2026 CWE-294

Description

Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network.

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0065

Probability of exploitation

0.51%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-294 CWE-294

References

Other References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62903

Frequently Asked Questions

What is CVE-2026-62903? +

Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-62903? +

CVE-2026-62903 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0065, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-62903? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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