CVE-2022-43969: Ricoh mp_c4504ex devices with firmware 1.06 mishandle credentials.

Q: How do I fix CVE-2022-43969?

mp c307 firmware: upgrade to newer than 1.14; mp c407 firmware: upgrade to newer than 1.14; mp c406 firmware: upgrade to newer than 1.20. Exact commands for each OS are on this page.

Q: Is CVE-2022-43969 being exploited?

CVE-2022-43969 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-43969 affect?

CVE-2022-43969 affects mp c307 firmware, mp c407 firmware, mp c406 firmware. Severity is critical (CVSS 9.1). Ricoh mp_c4504ex devices with firmware 1.06 mishandle credentials.

Q: How urgent is CVE-2022-43969?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.1REMOTEUPGRADEUPGRADEUPGRADE

CVE-2022-43969 is a critical-severity flaw (CVSS 9.1) affecting mp c307 firmware, mp c407 firmware, mp c406 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ricoh mp_c4504ex devices with firmware 1.06 mishandle credentials.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-522
Published	2023-02-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ricoh

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

Am I affected?

Timeline

2023-02-16 14:15 UTCPublished CVE record published
2026-06-17 05:07 UTCUpdated Record last modified

ricoh mp c307 firmware UPGRADE

Affected: <= 1.14

Fixed in: newer than 1.14

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.

ricoh mp c407 firmware UPGRADE

Affected: <= 1.14

Fixed in: newer than 1.14

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.

ricoh mp c406 firmware UPGRADE

Affected: <= 1.20

Fixed in: newer than 1.20

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.

ricoh mp c306 firmware UPGRADE

Affected: <= 1.20

Fixed in: newer than 1.20

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.

ricoh im cw2200 firmware UPGRADE

Affected: <= 1.01

Fixed in: newer than 1.01

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.

ricoh im cw2201 firmware UPGRADE

Affected: <= 1.11

Fixed in: newer than 1.11

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 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-2022-43969?

mp c307 firmware: upgrade to newer than 1.14; mp c407 firmware: upgrade to newer than 1.14; mp c406 firmware: upgrade to newer than 1.20. Exact commands for each OS are on this page.

Is CVE-2022-43969 being exploited?

CVE-2022-43969 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-2022-43969 affect?

CVE-2022-43969 affects mp c307 firmware, mp c407 firmware, mp c406 firmware. Severity is critical (CVSS 9.1). Ricoh mp_c4504ex devices with firmware 1.06 mishandle credentials.

How urgent is CVE-2022-43969?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Ricoh vulnerabilities

References

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