CVE-2026-63516General(microsoft / sharepoint_server)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

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0.0/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63516

Weakness type (CWE)

CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

sharepoint_server

Threat summary

1 mentions across 1 observed day

What's happening

General: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

sharepoint_server

2 versions affected across 1 product

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

General

1100.0%

Referenced assets1 URL

By indicator

https://windowsforum.com/security-alerts.84/cve-2026-63516-sharepoint-spoofing-fix-details-still-missing.442484/?utm_source=x&utm_medium=social&utm_campaign=news_node84

Full discourse1 post

Windows Forum@windowsforum46d
General
🛠️ Microsoft says SharePoint has a spoofing flaw, then withholds affected editions, fixes, CVSS and technical details. Patch Tuesday now comes with a side quest for basic information. https://windowsforum.com/security-alerts.84/cve-2026-63516-sharepoint-spoofing-fix-details-still-missing.442484/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #MicrosoftSecurity #PatchManagement #SharepointServer #Cve202663516 https://t.co/K52N3dtBlE
Post summary
The tweet announces Microsoft’s acknowledgment of a SharePoint spoofing flaw (CVE‑2026‑63516) but provides no technical details, PoC, patch, or evidence of exploitation.
0000045
1.3K followersView on X

CPE platform detail3 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

3 of 3 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	sharepoint_server	-	-	-
App	microsoft	sharepoint_server	2016	-	-
App	microsoft	sharepoint_server	2019	-	-

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