CVE-2024-8451: Certain switch models from PLANET Technology have an SSH service that improperly handles insufficiently authen

Q: How do I fix CVE-2024-8451?

gs-4210-24p2s firmware: upgrade to 3.305b240802; gs-4210-24pl4c firmware: upgrade to 2.305b240719. Exact commands for each OS are on this page.

Q: Is CVE-2024-8451 being exploited?

CVE-2024-8451 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-2024-8451 affect?

CVE-2024-8451 affects gs-4210-24p2s firmware, gs-4210-24pl4c firmware. Severity is high (CVSS 7.5). Certain switch models from PLANET Technology have an SSH service that improperly handles insufficiently authenticated connection requests, allowing unauthorized remote attackers to exploit this weakness to occupy connection slots and preven

Q: How urgent is CVE-2024-8451?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2024-8451 is a high-severity flaw (CVSS 7.5) affecting gs-4210-24p2s firmware, gs-4210-24pl4c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Certain switch models from PLANET Technology have an SSH service that improperly handles insufficiently authenticated connection requests, allowing unauthorized remote attackers to exploit this weakness to occupy connection slots and prevent legitimate users from accessing the SSH service.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-280, CWE-400
Published	2024-09-30
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: planet

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

Am I affected?

Timeline

2024-09-30 07:15 UTCPublished CVE record published
2026-06-17 08:22 UTCUpdated Record last modified

planet gs-4210-24p2s firmware UPGRADE

Affected: < 3.305b240802

Fixed in: 3.305b240802

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.

planet gs-4210-24pl4c firmware UPGRADE

Affected: < 2.305b240719

Fixed in: 2.305b240719

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-2024-8451?

gs-4210-24p2s firmware: upgrade to 3.305b240802; gs-4210-24pl4c firmware: upgrade to 2.305b240719. Exact commands for each OS are on this page.

Is CVE-2024-8451 being exploited?

CVE-2024-8451 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-2024-8451 affect?

CVE-2024-8451 affects gs-4210-24p2s firmware, gs-4210-24pl4c firmware. Severity is high (CVSS 7.5). Certain switch models from PLANET Technology have an SSH service that improperly handles insufficiently authenticated connection requests, allowing unauthorized remote attackers to exploit this weakness to occupy connection slots and preven

How urgent is CVE-2024-8451?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-8459 HIGH 7.2 UPGRADE UPGRADE Certain switch models from PLANET Technology store SNMPv3 users' passwords in plaintext within the configurati
CVE-2024-8458 HIGH 8.8 UPGRADE UPGRADE Certain switch models from PLANET Technology have a web application that is vulnerable to Cross-Site Request F
CVE-2024-8457 MEDIUM 4.8 UPGRADE UPGRADE Certain switch models from PLANET Technology have a web application that does not properly validate specific p
CVE-2024-8456 CRITICAL 9.8 UPGRADE UPGRADE Certain switch models from PLANET Technology lack proper access control in firmware upload and download functi
CVE-2024-8455 HIGH 8.1 UPGRADE UPGRADE The swctrl service is used to detect and remotely manage PLANET Technology devices

References

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