What’s Vulnerable › Vulnerabilities

CVE-2024-8451: PLANET Technology switch devices - SSH server DoS attack

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-30 · updated 2026-06-17
• Weakness: CWE-280

Description

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.

Affected products

• Planet Gs-4210-24P2S Firmware: before 3.305b240802 — fixed in 3.305b240802
• Planet Gs-4210-24Pl4C Firmware: before 2.305b240719 — fixed in 2.305b240719

How to fix

Upgrade to a fixed version: Planet Gs-4210-24P2S Firmware 3.305b240802; Planet Gs-4210-24Pl4C Firmware 2.305b240719. Check the vendor advisory for mitigations.

References

• https://www.twcert.org.tw/en/cp-139-8052-ac0ea-2.html
• https://www.twcert.org.tw/tw/cp-132-8051-5048e-1.html

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