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CVE-2022-32985: libnx_apl.so on Nexans FTTO GigaSwitch before 6.02N and 7.x before 7.02 implements a Backdoor Account for SSH

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CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2022-32985 is a critical-severity flaw (CVSS 9.8) affecting gigaswitch 641 desk v5 sfp-vi firmware, gigaswitch 642 desk v5 sfp-2vi firmware, gigaswitch v5 2tp\(pd-f\+\) sfp-vi 54vdc firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libnx_apl.so on Nexans FTTO GigaSwitch before 6.02N and 7.x before 7.02 implements a Backdoor Account for SSH logins on port 50200 or 50201.

Why this priority

  • Critical severity
  • Public exploit reference
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.3% (top 31%)
CISA exploited listNo
WeaknessCWE-798
Published2022-07-17
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: nexans

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

nexans gigaswitch 641 desk v5 sfp-vi firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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.
nexans gigaswitch 642 desk v5 sfp-2vi firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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.
nexans gigaswitch v5 2tp\(pd-f\+\) sfp-vi 54vdc firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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.
nexans gigaswitch v5 2tp\(pse\+\) sfp-vi 54vdc firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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.
nexans gigaswitch v5 2tp sfp-vi 54vdc firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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.
nexans gigaswitch v5 sfp-2vi 230vac firmware UPGRADE
Affected: < 6.02n · >= 7.0 and < 7.02
Fixed in: 6.02n, 7.02
Safe to downgrade to: a release before 7.0
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-2022-32985?

gigaswitch 641 desk v5 sfp-vi firmware: upgrade to 6.02n, 7.02; gigaswitch 642 desk v5 sfp-2vi firmware: upgrade to 6.02n, 7.02; gigaswitch v5 2tp\(pd-f\+\) sfp-vi 54vdc firmware: upgrade to 6.02n, 7.02. Exact commands for each OS are on this page.

Is CVE-2022-32985 being exploited?

CVE-2022-32985 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-2022-32985 affect?

CVE-2022-32985 affects gigaswitch 641 desk v5 sfp-vi firmware, gigaswitch 642 desk v5 sfp-2vi firmware, gigaswitch v5 2tp\(pd-f\+\) sfp-vi 54vdc firmware. Severity is critical (CVSS 9.8). libnx_apl.so on Nexans FTTO GigaSwitch before 6.02N and 7.x before 7.02 implements a Backdoor Account for SSH logins on port 50200 or 50201.

How urgent is CVE-2022-32985?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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