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Vulnerabilities/CVE-2023-29357
Vulnerability dossier

CVE-2023-29357

VendormicrosoftPublishedJun 13, 2023SourceNVDWeaknessCWE-303
Act now

Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.

⚙ WeaponizedMetasploit module availableopen ↗
Severity
Critical · 9.8
CVSS base score
Exploitation
In the wild
CISA KEV · Metasploit
Predicted risk
100% model
EPSS forecast — overtaken by confirmed exploitation
Exposure
Internet-facing
Exploitable remotely, no login, no user action
01

What's the risk?

An unauthenticated attacker, remotely over the network, with no user interaction, can fully compromise the system — steal data, tamper with it and take it offline.

Microsoft SharePoint Server Elevation of Privilege Vulnerability

How it's exploitedMITRE ATT&CK · inferred from weakness & vector
Initial Access
T1190Exploit Public-Facing Application

Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.

02

Who's exploiting it?

Corroborated threat activity referencing this CVE — with source and confidence, not inference.

Confirmed exploited in the wild. CISA KEV · catalogued Jan 10, 2024
campaignRansomware campaigns90CISA KEV

Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.

03

Are we affected?

1
  • Affectedmicrosoft · sharepoint_server2019
04

What to do

Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.

Generating AI analysis…
Technical details— weakness, CVSS vector & calculator, related CVEs

Weakness

1
CWE-303Common Weakness Enumeration · MITRE definition

CVSS 3.1 details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.0
/ 10.0 base
Critical severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability metrics
Attack VectorAV
Remotely exploitable across a network
Attack ComplexityAC
No special conditions required
Privileges RequiredPR
No authorization needed
User InteractionUI
No user participation needed
Impact metrics
ScopeS
Impact confined to the vulnerable component
ConfidentialityC
Total loss of confidentiality
IntegrityI
Total loss of integrity
AvailabilityA
Total loss of availability

Related vulnerabilities

Other CVEs affecting sharepoint server

NVD
9.8Critical
CVE-2026-58644KEV

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

microsoftCWE-502Deserialization of Untrusted DataNetworkLow effortNo authNo interactionCIA
2026-07-14
NVD
9.8Critical
CVE-2026-50522KEV

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

microsoftCWE-502Deserialization of Untrusted DataNetworkLow effortNo authNo interactionCIA
2026-07-14
NVD
9.8Critical
CVE-2026-20963KEV

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

microsoftCWE-502Deserialization of Untrusted DataNetworkLow effortNo authNo interactionCIA
2026-01-13
NVD
9.8Critical
CVE-2025-53770KEV⚙ WeaponizedExploit likely

Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.

microsoftCWE-502Deserialization of Untrusted DataNetworkLow effortNo authNo interactionCIA
2025-07-20
NVD
9.8Critical
CVE-2019-0604KEVPoCExploit likely

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0594.

microsoftCWE-20Improper Input ValidationNetworkLow effortNo authNo interactionCIA
2019-03-05
NVD
9.1Critical
CVE-2026-55040KEVExploit likely

Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.

microsoftCWE-1390NetworkLow effortNo authNo interactionCIA
2026-07-14
NVD
8.8High
CVE-2026-65660KEV

Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

microsoftCWE-94Code InjectionNetworkLow effortLow privNo interactionCIA
2026-08-11
NVD
8.8High
CVE-2026-45659KEV

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

microsoftCWE-502Deserialization of Untrusted DataNetworkLow effortLow privNo interactionCIA
2026-05-22
0.0
/ 10.0 base
Critical severity
Key facts
CVE ID
CVE-2023-29357
Published
Jun 13, 2023
Last modified
Oct 28, 2025
CVSS
9.8 (v3.1)
EPSS
99.98%
In CISA KEV
Yes
Confidence
100/100
Weakness
CWE-303
Timeline
  1. Jun 13, 2023Published to NVDNVD
  2. Oct 28, 2025Record last modifiedNVD
View on NVD