Type Vulnerability
This CVE was addressed by updates that were released in October 2026, but the CVE was inadvertently omitted from the October 2026 Security Updates.
Microsoft · Path traversal
Path Traversal in Microsoft Office SharePoint allows an authorized attacker to execute code over a network
CVE-2026-108452
What this means
This is rated high severity (8.8 out of 10). There is no confirmed exploitation of it yet. Ask IT whether Microsoft Sharepoint Server is in your estate, and treat that as the priority.
Full vendor description
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Scoring and exploitation
8.8/ 10
CVSS 3.1 base scoreHigh
Exploitable over the network with a low-privilege account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- ~0.8% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-22
Affected products ()
- Microsoft Sharepoint Server
Show the raw CPE strings (1)
- cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
References
1 link from the CVE record, grouped by site; the vendor's advisory comes first.
msrc.microsoft.com1 linkVendor advisory
- CVE-2026-108452 (opens in a new tab)Vendor Advisory