Threats / GIGABYTE / CVE-2018-19322
CVE-2018-19322
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
GIGABYTE Multiple Products vulnerability
GIGABYTE drivers GPCIDrv and GDrv in App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU II allow arbitrary IO port read/write operations, enabling privilege escalation and code execution.
Verdict
Today item, not a backlog item.
Low-level driver exposure permits direct hardware port manipulation, bypassing OS protections. Attackers can escalate privileges and execute arbitrary code. Active exploitation and ransomware deployment observed in the wild.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
3 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 2022-10-24), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.01872 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: GIGABYTE, Multiple Products. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-749 Exposed Dangerous Method — weakness family: Authorization / access control.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 load a malicious application that calls the vulnerable driver functions to read/write IO ports.
Business
Endpoint security controls are circumvented through trusted driver abuse.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I use IO port access to manipulate kernel memory or hardware state, escalating my privileges from user mode to system level.
Business
Administrative access is compromised, enabling full system compromise.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary code with system privileges to install ransomware or persistent malware.
Business
Critical data is encrypted or exfiltrated; business operations are disrupted.
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