Threats / Microsoft / CVE-2025-49704
CVE-2025-49704
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft SharePoint vulnerability
Microsoft SharePoint code injection vulnerability (CWE-94) allows authorized attackers to execute arbitrary code over a network. Actively exploited in ransomware campaigns with a known patch bypass.
Verdict
Today item, not a backlog item.
High-risk code injection in SharePoint enabling remote code execution by authenticated users. Active exploitation in ransomware operations and existence of patch bypass (CVE-2025-53770) elevate threat severity despite lack of CVSS score.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
66 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 2025-07-22), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.99907 — 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-94 Code Injection — 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 gain initial access as an authorized SharePoint user through compromised credentials or insider access.
Business
Attacker establishes foothold within trusted collaboration infrastructure with legitimate user privileges.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I inject malicious code through SharePoint functionality that fails to sanitize user input, triggering code execution.
Business
Arbitrary code runs within SharePoint processes, bypassing perimeter defenses that trust internal applications.
3
Lateral reach — past segmentation narrative 3
Attacker
I escalate privileges and move laterally across the network to deploy ransomware or exfiltrate sensitive data.
Business
Ransomware encrypts critical business systems; data theft exposes confidential information and regulatory exposure.
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