Threats / Microsoft / CVE-2025-24054
CVE-2025-24054
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Windows vulnerability
Microsoft Windows NTLM contains an external control of file name or path vulnerability enabling network-based spoofing attacks.
Verdict
Today item — known-exploited.
An attacker can manipulate file name or path references in NTLM authentication flows to spoof identity or redirect authentication attempts, compromising trust in network authentication mechanisms.
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
6 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 2025-04-17).
Probability (EPSS)
EPSS 0.58974 — 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.
Weakness (CWE)
Mapped to CWE-73 CWE-73 — weakness family: Path traversal / file.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
Craft a malicious network request that exploits path control in NTLM to redirect authentication to an attacker-controlled resource.
Business
Authentication systems fail to verify legitimate endpoints, allowing credential interception and unauthorized access to critical systems.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Intercept and modify NTLM authentication traffic to spoof a trusted server identity by controlling file path parameters.
Business
Users and systems trust fraudulent authentication responses, granting access to sensitive data and network resources to unauthorized parties.
3
Lateral reach — past segmentation narrative 3
Attacker
Establish persistent network presence by leveraging spoofed NTLM authentication to maintain access under false identity.
Business
Attackers gain sustained foothold in enterprise networks, enabling lateral movement and data exfiltration without detection.
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