Affects widely used enterprise product (Microsoft SharePoint); privilege escalation can impact many organizations and merit broad IT notification.
CVE-2026-102862
Authorization flaw in Microsoft SharePoint enabling privilege escalation over network
Is CVE-2026-102862 being exploited?
Not confirmed. CVE-2026-102862 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.71% probability of exploitation in the next 30 days.
How severe is CVE-2026-102862?
CVE-2026-102862 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-102862?
Yes. A fix has been recorded for CVE-2026-102862. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-102862 affect?
CVE-2026-102862 affects Microsoft SharePoint, Microsoft Office SharePoint Server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-102862?
Install MS SharePoint security update; audit permissions and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can elevate privileges in SharePoint over the network, access/modify site content, manage sites, and obtain admin capabilities.
Patch when possible
- affected>= 16.0.0 and < 16.0.20326.20190
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.