Threats / Microsoft / CVE-2014-4148
CVE-2014-4148
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Windows vulnerability
A remote code execution vulnerability in Windows kernel-mode driver TrueType font handling allows attackers to execute arbitrary code with kernel privileges.
Verdict
Today item — known-exploited.
This kernel-mode RCE vulnerability in TrueType font processing presents severe risk. Exploitation requires user interaction to open a malicious font file but grants full system compromise. Active exploitation in the wild confirms practical threat.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
7 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 2022-05-25).
Probability (EPSS)
EPSS 0.50703 — 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-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
Craft a malicious TrueType font file that triggers improper kernel-mode driver handling.
Business
Attacker gains kernel-level code execution, enabling complete system compromise and persistent control.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Distribute the malicious font via email, web download, or document embedding to target users.
Business
Widespread infection potential across Windows systems, leading to data theft, lateral movement, and infrastructure compromise.
3
Lateral reach — past segmentation narrative 3
Attacker
Execute arbitrary code with kernel privileges to disable security controls and establish persistence.
Business
Security defenses become ineffective; attackers maintain long-term access and control over affected systems.
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