CVE-2026-102862

HIGH

Published Oct 13, 2026 Modified Oct 14, 2026 CWE-863

Description

Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

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CVSS v3.1 Score

8.8

HIGH

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

EPSS — Exploit Prediction

0.0070

Probability of exploitation

0.52%

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-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
microsoft	sharepoint_server	< 16.0.20326.20190

References

Advisories & Patches

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102862

Frequently Asked Questions

What is CVE-2026-102862? +

Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-102862? +

CVE-2026-102862 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0070, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-102862? +

CVE-2026-102862 affects products from microsoft, specifically: sharepoint_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-102862? +

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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