Vulnerability affects Microsoft SharePoint, a widely deployed enterprise platform; authenticated SSRF with privilege escalation risk can enable lateral movement or admin takeover across organizations.
CVE-2026-70324
Authenticated SSRF in Microsoft SharePoint enabling network privilege escalation.
Is CVE-2026-70324 being exploited?
Not confirmed. CVE-2026-70324 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 0.70% probability of exploitation in the next 30 days.
How severe is CVE-2026-70324?
CVE-2026-70324 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-2026-70324?
Yes. A fix has been recorded for CVE-2026-70324. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-70324 affect?
CVE-2026-70324 affects Microsoft SharePoint Server, SharePoint Online, Office SharePoint. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-70324?
Apply vendor patch/mitigations immediately; restrict SharePoint network access and block internal request paths.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated SSRF allows backend/internal requests leading to privilege escalation, lateral movement, data access, or admin takeover.
Immediate action required
- affected>= 16.0.0 and < 16.0.5565.1001
- affected>= 16.0.0 and < 16.0.10417.20198
- affected>= 16.0.0 and < 16.0.19725.20522
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.