Threats / Microsoft / CVE-2019-1405
CVE-2019-1405
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Windows vulnerability
A privilege escalation vulnerability in Windows UPnP service allows improper COM object creation, enabling attackers to gain elevated system privileges.
Verdict
Today item, not a backlog item.
This vulnerability poses significant risk due to active exploitation in the wild and documented use in ransomware campaigns. The privilege escalation path on Windows systems creates a direct route to system compromise.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported 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 2022-03-15), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.2995 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Windows. Confirm exact fixed builds in the vendor advisory.
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 to a Windows system through phishing or network exposure.
Business
An attacker establishes a foothold on corporate endpoints, bypassing perimeter controls.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I trigger improper COM object creation through the UPnP service to escalate my privileges to SYSTEM level.
Business
The attacker obtains unrestricted system access, enabling lateral movement and persistence.
3
Lateral reach — past segmentation narrative 3
Attacker
I deploy ransomware or additional malicious payloads with full system privileges.
Business
Critical business systems are encrypted or compromised, resulting in operational shutdown and financial extortion.
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