CVE-2018-16709 is a critical-severity flaw (CVSS 9.8) affecting docucentre-v 3065 firmware, apeosport-v c4475 firmware, apeosport-vi c3371 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Fuji Xerox DocuCentre-V 3065, ApeosPort-VI C3371, ApeosPort-V C4475, ApeosPort-V C3375, DocuCentre-VI C2271, ApeosPort-V C5576, DocuCentre-IV C2263, DocuCentre-V C2263, and ApeosPort-V 5070 devices allow remote attackers to read or write to files via crafted PJL commands.
Why this priority
Critical severity
Public exploit reference
Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
fujixerox docucentre-v 3065 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
fujixerox apeosport-v c4475 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
fujixerox apeosport-vi c3371 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
fujixerox apeosport-v c3375 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
fujixerox docucentre-vi c2271 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
fujixerox apeosport-v c5576 firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · 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-2018-16709?
docucentre-v 3065 firmware: mitigate or apply the listed mitigation; apeosport-v c4475 firmware: mitigate or apply the listed mitigation; apeosport-vi c3371 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2018-16709 being exploited?
CVE-2018-16709 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-2018-16709 affect?
CVE-2018-16709 affects docucentre-v 3065 firmware, apeosport-v c4475 firmware, apeosport-vi c3371 firmware. Severity is critical (CVSS 9.8). Fuji Xerox DocuCentre-V 3065, ApeosPort-VI C3371, ApeosPort-V C4475, ApeosPort-V C3375, DocuCentre-VI C2271, ApeosPort-V C5576, DocuCentre-IV C2263, DocuCentre-V C2263, and ApeosPort-V 5070 devices allow remote attackers to read or write to
How urgent is CVE-2018-16709?
Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action
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