Threats / Microsoft / CVE-2024-38094
CVE-2024-38094
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft SharePoint vulnerability
Microsoft SharePoint contains a deserialization vulnerability (CWE-502) enabling remote code execution. The flaw is actively exploited in the wild and associated with ransomware campaigns.
Verdict
Today item, not a backlog item.
An unauthenticated or low-privileged attacker can exploit unsafe deserialization in SharePoint to achieve arbitrary code execution on affected servers, leading to full system compromise and data exfiltration.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-10-22), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.55328 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, SharePoint. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-502 Deserialization of Untrusted Data — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious serialized object and send it to a vulnerable SharePoint endpoint to trigger deserialization.
Business
Attackers gain code execution within the SharePoint process, bypassing application controls and security boundaries.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I escalate privileges and move laterally across the network to access sensitive business data and backup systems.
Business
Ransomware operators encrypt critical files and databases, halting business operations and threatening data loss.
3
Lateral reach — past segmentation narrative 3
Attacker
I exfiltrate confidential documents, customer records, and intellectual property before deploying encryption payloads.
Business
The organization faces regulatory fines, reputational damage, and potential extortion demands from threat actors.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05