CVE-2026-65658Patch(microsoft / sharepoint_server)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft sharepoint_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

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0.5/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65658

Weakness type (CWE)

CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

sharepoint_server

Threat summary

Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 2 signals
Peaked 1d ago at 1 mentions (2026-08-11); latest day: 1
2 total mentions across 2 days

Affected systems

Vendors

microsoft

Products

sharepoint_server

2 versions affected across 1 product

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Patch

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

VulniPulse@vulnipulse46d
Patch
⚠️ HIGH CVE ALERT CVE-2026-65658 · Microsoft SharePoint Enterprise… · CVSS 8.8 Attackers could execute arbitrary code. Upgrade to a vendor-listed fixed release. 🔎 Full advisory: https://vulnipulse.com/advisories/microsoft-cve-2026-65658 #CyberSecurity #CVE #Microsoft #MicrosoftSharePointEnterprise
Post summary
The advisory announces CVE‑2026‑65658 with high severity, warns of arbitrary code execution, and urges users to apply the vendor‑provided fixed release.
1000042
7 followersView on X
Windows Forum@windowsforum46d
Patch
🛡️ SharePoint admins, August’s CVE-2026-65658 fix closes an on-prem RCE—but “patched” isn’t a checkbox. Deploy it across every farm, then verify the installed build. KB text can lie. https://windowsforum.com/security-alerts.84/cve-2026-65658-august-updates-fix-sharepoint-server-rce.442679/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #PatchManagement #SharepointServer #MicrosoftSecurityUpdates https://t.co/okECLikBs8
Post summary
The tweet alerts SharePoint admins to a CVE‑2026‑65658 fix that closes an on‑prem RCE, urging deployment and verification, with no evidence of PoC, exploitation, or the CVE being dismissed.
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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