CVE-2015-5466: Silicon Integrated Systems XGI WindowsXP Display Manager (aka XGI VGA Driver Manager and VGA Display Manager)

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HIGH 7.8DOWNGRADE

CVE-2015-5466 is a high-severity flaw (CVSS 7.8) affecting xgi vga display manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Silicon Integrated Systems XGI WindowsXP Display Manager (aka XGI VGA Driver Manager and VGA Display Manager) 6.14.10.1090 allows local users to gain privileges via a crafted 0x96002404 IOCTL call.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-269
Published	2020-01-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sis

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-01-15 16:15 UTCPublished CVE record published
2026-06-17 00:29 UTCUpdated Record last modified

sis xgi vga display manager DOWNGRADE

Affected: 6.14.10.1090

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.14.10.1090

1. Check installed version

apt-cache policy xgi-vga-display-manager || rpm -q xgi-vga-display-manager || xgi-vga-display-manager --version

2. No fixed release: DOWNGRADE to a release before 6.14.10.1090 (Debian / Ubuntu)

apt-cache madison xgi-vga-display-manager sudo apt install xgi-vga-display-manager=<VERSION_BEFORE_6.14.10.1090> sudo apt-mark hold xgi-vga-display-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xgi-vga-display-manager sudo dnf downgrade xgi-vga-display-manager-<VERSION_BEFORE_6.14.10.1090> sudo dnf versionlock add xgi-vga-display-manager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: XGI Windows VGA Display Manager 6.14.10.1090 - Arbitrary Write (PoC)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-5466?

xgi vga display manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-5466 being exploited?

CVE-2015-5466 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-5466 affect?

CVE-2015-5466 affects xgi vga display manager. Severity is high (CVSS 7.8). Silicon Integrated Systems XGI WindowsXP Display Manager (aka XGI VGA Driver Manager and VGA Display Manager) 6.14.10.1090 allows local users to gain privileges via a crafted 0x96002404 IOCTL call.

How urgent is CVE-2015-5466?

Priority 49/100. High severity; Public exploit reference

References

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